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Research reveals how long it takes Aussies to save for a holiday

Saving up for a holiday can seem like an overwhelming task, but some destinations are easier to save for than others. According to new research by <a href="http://money.com.au/">money.com.au</a>, nearly a third of travellers - or 31 percent - need on average a year to save for a trip, while 29 percent of Aussies save for up to six months before jetting off. For 18 percent of travellers, it takes more than a year to save for a trip, while just 13 percent of Aussies manage to save for a holiday in less than three months. On the flip side, 7 percent of eager travellers decide to skip saving altogether and cover their holiday expenses fully on a credit card, while just 2 percent opt for a personal loan to fund their trips. Money.com.au's Finance Expert, Sean Callery said of the survey, "Our research also shows that travel is the one expense Australians aren't willing to forgo, no matter their financial goals or income level." "Going into debt for a holiday brings additional costs and risks. It's important to have a plan for clearing the debt as quickly as possible." With these saving trends in mind, the experts have crunched the numbers to estimate how long it would take the average Aussie to save for a trip to the most popular overseas holiday destinations. The saving time for each location was calculated based on a 10 per cent savings rate of the average weekly earnings of $1,923.40 (from ABS data). Two of the quickest destinations to save for are China and Thailand, while other destinations the experts say you can save for in around half a year include New Zealand, Vietnam and Singapore. Image credits: Shutterstock

Travel Tips

New research calls for later-in-life driving lessons

New research has shown that older drivers should be coming forward to test and update their driving skills to keep people safer on the road, and keep senior drivers behind the wheel for longer. A new website launched by the University of New South Wales (UNSW) and neuroscience institute NeuRA aims to help drivers aged in their 50s and above stay safe when driving, while also helping to update their skills to keep them on the roads for longer. Cognitive aging expert and UNSW professor Kaarin Anstey told <a href="https://www.9news.com.au/national/how-old-is-too-old-to-drive-in-australia-new-research-shows-ageing-motorists-should-have-driving-lessons/6a470fa9-f0c3-4571-a229-672e689f1e76" target="_blank" rel="noopener">9News</a> later-in-life driving lessons were crucial as our population grows and ages. "We obviously want people to stay on the road as long as it's safe for them to do so. And that's the issue: they have to be safe on the road," Anstey explained. "That's the point of the website, to empower older drivers, family members and health professionals." "We've been working on this issue of older drivers for over 20 years because the second biggest cause of injury in older adults is motor vehicle accidents or crashes (after falls)." Anstey said her research in <a href="https://www.unsw.edu.au/newsroom/news/2024/11/should-age-determine-how-long-drive-car" target="_blank" rel="noopener">The Better Drive Study</a> analysed how the driving habits of older motorists changed if they had a refresher course. "A lot of people got their licence in an era where the cars were different, the roads were different, the road rules were different," she said. "We just feel there's a certain amount of improvement that probably all of us, not just the older age group but lots of people, could benefit in refreshing their driving skills." Anstey's pilot study, that followed motorists aged over 65 over 12 months, found older people were more likely to develop bad habits such as not checking blind spots or not keeping up to date with key road rules. She said people who did the driving lessons had a "big improvement" in their safety on the road. Later-in-life lessons could also identify if a person should be looking at giving up their licence, as Anstey added, "Sometimes there's people who we find who are not very safe drivers, or who have an impairment that they may not have been aware of." When asked what they thought of the initiative, some older drivers told 9News, "I think it's a good idea, there are some older people who definitely need a refresher but there are some that are still quite good." "I'd rather not go through those grills but I guess for everyone's safety it's a very good thing," another added. Image credits: Shutterstock

Travel Trouble

Music and dementia: researchers are still making discoveries about how songs can help sufferers

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/rebecca-atkinson-1288605">Rebecca Atkinson</a>, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin University</a> and <a href="https://theconversation.com/profiles/ming-hung-hsu-2215063">Ming-Hung Hsu</a>, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin University</a> Music is woven into the fabric of our everyday lives. Whether it’s lifting our spirits, pushing us to run faster or soothing us to sleep, we can all <a href="https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2021.713818/full">recognise its power</a>. So it’s no wonder it is increasingly being used in medical treatment. As well as proving very useful in <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3863265/">cancer treatment</a>, managing <a href="https://www.sciencedirect.com/science/article/pii/S1526590022000153">chronic pain</a> and even helping the brain <a href="https://www.frontiersin.org/articles/10.3389/fnhum.2014.00245/full">recover after a stroke</a>, researchers have also been making great strides in using music to help patients with dementia. It reduces patients’ <a href="https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD003477/full">anxiety and depression</a>, and <a href="https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(23)00401-7/fulltext">improves wellbeing</a> both for them and their carers <a href="https://www.cambridge.org/core/journals/the-british-journal-of-psychiatry/article/individual-music-therapy-for-depression-randomised-controlled-trial/A1CD72904929CECCB956F4F3B09605AF">by enhancing</a> everyone’s ability to adapt and cope with adversity or stress. <a href="https://www.bamt.org">Music therapy</a> in the form of playing, singing or listening to music can also have a <a href="https://journals.sagepub.com/doi/abs/10.1177/1362361309105660">positive effect</a> on cognitive function – particularly for <a href="https://link.springer.com/article/10.1186/1472-6882-10-39">older adults</a> either with dementia or memory issues. So why does music appear to have such a powerful effect for people with dementia? <h2>Music and the brain</h2> About a decade ago, <a href="https://www.sciencedirect.com/science/article/abs/pii/S1053811911013000">researchers discovered that</a> when people listened to music, multiple areas of the brain were involved in processing it. These included the limbic (which processes emotions and memory), cognitive (involved with perception, learning and reaction) and motor areas (responsible for voluntary movement). This challenged preconceptions that music was processed more narrowly in the brain – and helped explain why it has such a unique neurological impact. Not only that, research has shown that music might help <a href="https://www.sciencedirect.com/science/article/abs/pii/S0306987708002880">regenerate the brain</a> and its connections. Many <a href="https://www.nhs.uk/conditions/dementia/about-dementia/causes/">causes of dementia</a> centre around cell death in the brain, raising the possibility that music could help people with dementia by mending or strengthening damaged neural connections and cells. It’s not just any music that has a regenerative effect on the brain, though. <a href="https://www.frontiersin.org/articles/10.3389/fnhum.2016.00103/full">Familiar and favourite music</a> has been shown to have the biggest impact on the way we feel, and is closely linked with memory and emotions. This is because listening to our favourite songs <a href="https://www.nature.com/articles/nn.2726">releases feel-good hormones</a> that give us a sense of pleasure. Curated music playlists of favourite music could be the key in helping us deal with the <a href="https://journals.sagepub.com/doi/full/10.1177/10298649211030318">stress of everyday life</a>. This is relevant to Alzheimer’s and other forms of dementia because researchers have discovered that parts of the brain linked with <a href="https://academic.oup.com/brain/article/138/8/2438/330016">musical memories</a> are less affected by these conditions than other areas of the brain. This explains why memories and experiences that are linked to <a href="https://link.springer.com/article/10.14283/jpad.2018.19">favourite music</a> are often preserved for people with such conditions. Listening to music can also <a href="https://pubmed.ncbi.nlm.nih.gov/34346261/">help manage</a> their experiences of distress, agitation and “<a href="https://www.alzheimers.org.uk/about-dementia/symptoms-and-diagnosis/symptoms/sundowning">sundowning</a>” – where a person is more confused in the afternoon and evening. In a <a href="https://www.sciencedirect.com/science/article/pii/S0197457224002209?utm_campaign=STMJ_219742_AUTH_SERV_PA&utm_medium=email&utm_acid=224973760&SIS_ID=&dgcid=STMJ_219742_AUTH_SERV_PA&CMX_ID=&utm_in=DM500444&utm_source=AC_">small study</a> conducted by us and our colleagues at the Cambridge Institute for Music Therapy Research, we showed just how great of an effect listening to music can have for people with dementia. We found that when people with dementia repeatedly listened to their favourite music, their heart rate and movements changed in direct response. This showed that people’s physical responses were affected by musical features like rhythm and arrangement. Their heart rate also changed when they sang along to music, or when they began reminiscing about old memories or stories while listening to a song or thinking about the music. These changes are important because they show how music affects movement, emotions and memory recall. Studies have also shown that during and after listening to music, people with dementia <a href="https://www.mdpi.com/2076-3425/13/7/1103">experienced less agitation</a>, aggression and anxiety, and their general mood was improved. They even needed less medication when they had regular music sessions. Other researchers have even begun testing the effects of <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/gps.4721?casa_token=VufeKQP7aNsAAAAA%3AMSOgiwUQYKqmmrLsUFv9glmSnc5BMxoqeMmmt3HX4BJX2Fs2UKeXjnN2850o1Umz0j1NvmrpQ3W3Pw">music training programmes</a> to support cognition for people with dementia. Results have been promising so far – with adults in the study showing improved executive functioning (problem solving, emotion regulation and attention) compared to those who took part in just physical exercise. So, music is likely to continue to be a useful medical treatment for people with dementia. But based on what we know so far, it’s important that it comes from the patient’s own music collection – and is used alongside other management techniques such as using drugs that can slow the progression of dementia or help manage symptoms to support self-care and wellbeing.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/239446/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/rebecca-atkinson-1288605">Rebecca Atkinson</a>, Researcher in Music Therapy, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin University</a> and <a href="https://theconversation.com/profiles/ming-hung-hsu-2215063">Ming-Hung Hsu</a>, Senior Research Fellow, Music Therapy, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin University</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/music-and-dementia-researchers-are-still-making-discoveries-about-how-songs-can-help-sufferers-239446">original article</a>. </div>

Mind

New research proves travelling can slow down the ageing process

It turns out that going on holiday is good for you in more ways than one. According to new research conducted at Edith Cowan University in Western Australia, travelling can actually slow the ageing process both physically and mentally. The study, published in the <a title="Journal of Travel Research" href="https://journals.sagepub.com/doi/10.1177/00472875241269892#:~:text=The%20principle%20of%20entropy%20increase%20provides%20a%20dynamic%20perspective%20to,Silva%20%26%20Annamalai%2C%202008)." target="_blank" rel="noopener">Journal of Travel Research</a>, is believed to be the first-ever that applied the theory of entropy - the general trend of the universe towards death and disorder – to tourism. "Tourism isn't just about leisure and recreation. It could also contribute to people's physical and mental health," ECU PhD candidate Fangli Hu said. "Ageing, as a process, is irreversible. While it can't be stopped, it can be slowed down." According to the research, travelling, exploring new corners of the world and engaging in unique and relaxing activities can stimulate stress responses and elevate metabolic rates, positively influencing metabolic activities and the body's self-organising capabilities. "Leisurely travel activities might help alleviate chronic stress, dampen over-activation of the immune system, and encourage normal functioning of the self-defence system," Fangli added. While some people prefer relaxing holidays, others prefer to stay on their feet and keep active during their travels, enjoying the many well-known benefits of exercise. It can "enhance the body's immune function and self-defence capabilities, bolstering its hardiness to external risks". In response to their study, the experts suggested that "travel therapy could serve as a groundbreaking health intervention." Despite the positive results of the research, experts also warned that travelling can exposed to infectious diseases, accidents, injuries, violence, water and food safety issues, and concerns related to inappropriate tourism engagement, which in turn will have the opposite effect on our health. "Conversely, tourism can involve negative experiences that potentially lead to health problems, paralleling the process of promoting entropy increase," Fangli said. Image credits: Shutterstock

Travel Tips

"Never been seen before": Fergie reveals new details from 9/11 near miss

Sarah Ferguson, affectionately known as Fergie, has taken to Instagram overnight to share new details of her 9/11 near miss. 24 years on, the Duchess of York, who has previously revealed that she was meant to be in the World Trade Centre's North Tower when the plane struck the building, has shared more details of the day. Fergie recalled how her friend, billionaire businessman Howard Lutnick, gave her an office on the 101st floor of the World Trade Centre at the time, for her charity Chances for Children. The charity's logo had a mascot called Little Red, which was eventually made into a doll for a child named PJ who survived the 1995 Oklahoma City Bombings. On the day of the 9/11 attacks Fergie was due to attend a meeting in the office, but was running late because of an earlier engagement, so she was still on route to the building when the terrorists struck. "I was driving in the car and I was late for work... and Little Red was found in the rubble," she said in the video. Fergie opened a box to reveal her own Little Red doll that survived the attacks. While she has previously talked about the doll, this is the first time she revealed what it looked like. "A fireman picked her up, carried her out, like the fireman that picked up PJ all those years ago in the Oklahoma City Bombing," she continued. "And CNN filmed it and said, 'Look, a child's doll.' And Larry King said, 'That's no child's doll. That's Fergie's Little Red' and she stands for children's rights all over the world and she's a sign of hope for children. "What no one has ever seen before and I would like to share this with you is the actual doll that survived in 9/11. "So here, I have it at home. Normally I talk about Little Red and here is the actual doll that survived. "You can see the dust from the building — that's never been seen before. <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-permalink="https://www.instagram.com/reel/C_xjdvMKSCn/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/reel/C_xjdvMKSCn/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Sarah Ferguson (Fergie) (@sarahferguson15)</a> </div> </blockquote> "And I hope Little Red will be talked about all over the world because she's just a very strong, stoic little person." She also shared that on the day, Little Red "sat on her desk overlooking Manhattan on that fateful day when the towers came down." "She came down through the rubble and landed fully intact," she wrote. "Little Red was carried out of the rubble in the fireman's hat exactly as PJ, a child burn victim, was carried years earlier in the Oklahoma City bombing, where the doll was first inspired to bring hope during difficult times and raise money for aid. "Little Red now sits in the 9/11 memorial museum and serves as a reminder of hope within the darkness. We will #neverforget," she continued before encouraging her followers to donate to the Cantor Relief Fund, to support families affected by disaster. Images: Instagram

Caring

Our research shows 4 in 10 Australians in aged care are malnourished. What can we do about it?

<div class="theconversation-article-body"> <a href="https://theconversation.com/profiles/jonathan-foo-1551045">Jonathan Foo</a>, <a href="https://theconversation.com/institutions/monash-university-1065">Monash University</a> and <a href="https://theconversation.com/profiles/marie-claire-oshea-1373994">Marie-Claire O'Shea</a>, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a> In the next 40 years <a href="https://treasury.gov.au/sites/default/files/2023-08/p2023-435150-fs.pdf">in Australia</a>, it’s predicted the number of Australians aged 65 and over will more than double, while the number of people aged 85 and over will more than triple. If you’re not really interested in aged care, you should be. Given these figures, you will almost certainly be engaging with aged care services at some stage – either for yourself, or supporting family members or friends seeking aged care. One service you are likely to encounter is residential aged care homes. In the past few years this sector has been under more scrutiny than ever before. Changes to legislation, workforce and funding are in motion. But the question remains as to whether these changes can happen fast enough to meet our ageing population’s needs. One area of need not being adequately met at present is nutrition. In a <a href="https://www.mdpi.com/2227-9032/12/13/1296">new study</a>, we’ve found four in ten older Australians living in residential aged care are not receiving enough of the right types of nutrients, resulting in loss of weight and muscle. This is known as malnutrition. <h2>Good nutrition is essential for healthy ageing</h2> Malnutrition in older people is <a href="https://www.agedcarequality.gov.au/providers/food-nutrition-dining/why-meals-matter">associated with</a> poorer overall health, such as increased risk of falls and infections. This can accelerate loss of independence for older people, including the need for extra assistance with basic activities such as bathing and dressing. Older people are at increased risk of <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(22)02612-5/abstract">malnutrition</a> for a range of reasons. These can include decreased appetite, difficulties with chewing and swallowing, and the presence of other chronic diseases such as Parkinson’s disease or dementia. Importantly, ensuring adequate nutrition is about more than just offering healthy foods. We eat not only to meet nutritional requirements, but for enjoyment and socialisation. We each have different preferences around what we want to eat, when and with whom. Food provision poses a challenge for residential aged care providers who must navigate the range of residents’ preferences together with dietary restrictions and texture modifications. This must also be balanced against the practicalities of having the right number of appropriately trained kitchen and mealtime assistance staff, and working within funding constraints. Understanding more about who is malnourished in aged care can help providers better address this problem. <h2>Malnutrition is an ongoing problem in aged care</h2> We looked at more than 700 aged care residents in New South Wales, Queensland and South Australia. We assessed participants for malnutrition using a screening tool that collects data on medical history and dietary intake, and includes a physical examination of muscle and fat. We found 40% were malnourished, including 6% who were severely malnourished. This likely underestimates the true rate of malnutrition, as residents with dementia were excluded. International <a href="https://www.mdpi.com/2072-6643/15/13/2927">studies</a> have shown an average of 80% of aged care residents with dementia are malnourished or at risk of developing malnutrition. Our findings are broadly in line with a synthesis of <a href="https://www.sciencedirect.com/science/article/pii/S0378512219301148">38 international studies</a>, which reported an average malnutrition rate in residential aged care of 52%. In Australia, malnutrition was highlighted as <a href="https://www.royalcommission.gov.au/aged-care">a priority</a> for immediate attention in the 2021 Royal Commission into Aged Care Quality and Safety. Its report cited <a href="https://www.cambridge.org/core/journals/british-journal-of-nutrition/article/dairy-food-supplementation-may-reduce-malnutrition-risk-in-institutionalised-elderly/52E93ADD586C634A3913A2AFE9D07847">an Australian study</a> of 215 residents, published in 2017, which found 68% were malnourished or at risk of malnutrition. It’s difficult to directly compare malnutrition rates between studies due to differences in diagnostic measurements. But it’s clear malnutrition is an ongoing challenge in aged care. <h2>What can we do about it?</h2> Since the royal commission, we’ve seen the strengthening of the <a href="https://www.agedcarequality.gov.au/providers/quality-standards/strengthened-quality-standards">quality standards</a> to be included in the new Aged Care Act, anticipated to be introduced to parliament in 2025. The strengthened quality standards provide an important framework to guide action by aged care providers on malnutrition. Key requirements include partnering with residents to design food options, regular assessment and reassessment of resident nutrition requirements, developing systems to monitor and improve satisfaction with food, designing pleasant dining environments, and providing staff with the training they need to achieve all of the above. However, achieving these standards will require investment of money and time. At the moment, <a href="https://kpmg.com/au/en/home/insights/2023/09/australian-aged-care-sector-analysis.html">64% of residential aged care providers</a> in Australia are operating at a financial loss. While we know carers and facility managers want to provide the best care possible, it’s difficult to achieve this when contending with underlying financial problems. As such, our teams at Monash and Griffith universities are focusing on strategies that minimise the burden on staff and providers. We are working on automating malnutrition screening. Current tools take 10–15 minutes and should be used when a new resident moves into an aged care home and regularly during their stay. But anecdotal evidence suggests providers lack the staff and funding needed to routinely carry out this screening. Instead, we aim to use existing data from aged care providers, including quarterly reports from the <a href="https://www.health.gov.au/our-work/qi-program">National Aged Care Mandatory Quality Indicator Program</a>, to detect malnutrition automatically. This will allow staff to focus more on care. Given the complexity of malnutrition, it’s likely that addressing the issue at a national scale will take some time. In the short term, for those with loved ones in aged care homes, we encourage you to be actively involved in their care, including noticing and speaking up if you think more can be done to optimise their nutrition.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/235507/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/jonathan-foo-1551045">Jonathan Foo</a>, Lecturer, Physiotherapy, <a href="https://theconversation.com/institutions/monash-university-1065">Monash University</a> and <a href="https://theconversation.com/profiles/marie-claire-oshea-1373994">Marie-Claire O'Shea</a>, Senior Lecturer, School of Health Sciences and Social Work, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/our-research-shows-4-in-10-australians-in-aged-care-are-malnourished-what-can-we-do-about-it-235507">original article</a>. </div>

Body

Major breakthrough holds the key to diagnosing Alzheimer's

A new study has found that a simple blood test could be key to diagnosing Alzheimer's more quickly and more accurately. The research, published on the Journal of the American Medical Association, was conducted by a team of scientists at Sweden’s Lund University, was based off 1213 patients there with the condition. They found that a blood test could correctly identify whether patients with memory problems had Alzheimer’s 90 per cent of the time – making it “significantly” more accurate than cognitive tests and CAT scans in diagnosing the condition. The test itself measures tau protein 217, which if there is an abnormal build up of both in and around brain cells, may be the cause of the disease. “Increases in p tau-217 concentrations in the blood are quite profound in Alzheimer’s disease,” study co-author, Lund University associate professor and senior consultant neurologist, Dr Sebastian Palmqvist, told CNN. “At the dementia stage of the disease, levels are more than eight times higher compared with elderly (people) without Alzheimer’s.” As part of the study, the p tau-217 test was combined with one testing for another blood biomarker for Alzheimer’s called the amyloid 42/40 ratio. Other doctors have shared their thoughts on the research findings, with Chief science officer of America’s Alzheimer’s Association, Dr Maria Carrillo, telling CNN that doctors would “love to have a blood test that can be used in a primary care physician’s office, functioning like a cholesterol test but for Alzheimer’s”. “The p tau-217 blood test is turning out to be the most specific for Alzheimer’s and the one with the most validity. It seems to be the frontrunner,” she added. Blood tests like this could “change the game in the speed in which we can conduct Alzheimer’s trials and get to the next new medication”. Dr Jason Karlawish, the co-director at the University of Pennsylvania’s Penn Memory Centre, said of the research: “Not too long ago measuring pathology in the brain of a living human was considered just impossible.” “This study adds to the revolution that has occurred in our ability to measure what’s going on in the brain of living humans.” Image: Shutterstock

Caring

Mysterious leg pain that’s quietly killing older Australians

Peripheral Artery Disease (PAD) has long been overshadowed by its more widely recognised counterparts, such as heart attacks and strokes. Often referred to as the “poor cousin” or “Cinderella” of cardiovascular diseases, PAD affects one in five older Australians, yet it remains largely under-diagnosed and misunderstood. However, a wave of optimism is sweeping through the medical community with the launch of <a href="https://www.hri.org.au/our-research/centreforpad" target="_blank" rel="noopener">The Centre for Peripheral Artery Disease</a>, an Australian-first facility dedicated to pioneering research and improving patient outcomes. Spearheaded by the Heart Research Institute, the Centre for Peripheral Artery Disease, marks a significant step forward in addressing the challenges posed by PAD. The centre aims to fill critical gaps in our understanding of the disease, which is responsible for a limb amputation in Australia every two hours. This initiative promises to enhance diagnosis, transform patient care, and raise awareness about PAD. Associate Professor Mary Kavurma, the Centre Lead, is at the forefront of this ground-breaking effort. “We’re supercharging research into PAD because there are still many unknowns about the disease’s biology that could unlock new methods for early detection and better management,” she explains. This research is particularly urgent given the prevalence of PAD among women and First Nations Australians, groups that remain disproportionately affected by this condition. The centre’s mission is to develop a simple blood test for early diagnosis and explore novel therapies that could reduce the need for limb amputations and significantly improve patients’ quality of life. Unlike current treatments that primarily focus on symptom management, this new approach seeks to prevent the disease from progressing. One of the most inspiring aspects of the centre is its commitment to involving patients and their families in the research process. At the inaugural consumer meeting, nearly 20 patients and their carers shared their personal experiences with PAD. Take the story of Simon Josephson, a renowned advertising guru – who famously designed the Solo logo. PAD almost cost him his life after taking more than five years to diagnose. He woke up one morning with a sore leg, thinking he’d overdone it exercising but the 73-year-old – who was otherwise healthy and active – unknowingly had Peripheral Artery Disease, caused by a build-up of plaque in his arteries causing them to narrow and stiffen. It wasn’t until a trip to the hospital emergency department years later that doctors would discover his aorta had expanded to more than twice the usual size and was at risk of rupturing. He immediately underwent open heart surgery and has faced a lengthy recovery. The launch of <a href="https://www.hri.org.au/our-research/centreforpad" target="_blank" rel="noopener">The Centre for Peripheral Artery Disease</a> heralds a new era of hope and progress in the fight against PAD. Through world-leading research, community engagement, and a commitment to patient-centred care, the CPAD is poised to make a profound impact on the lives of many Australians. As Assoc Prof Kavurma aptly put it, “By understanding more about this debilitating condition, we are paving the way for better health outcomes and a brighter future for all those affected by PAD.” Images: CPAD

Caring

Shopping centre locked down after violent altercation

Two teenage boys have been arrested after a violent altercation broke out in South Australia's largest shopping centre. On Sunday afternoon, three boys allegedly confronted another group of teens at the Westfield Marion centre’s food court armed with “expandable batons”, with reports one of the boys was also armed with a knife. The violent altercation triggered Westfield’s emergency lockdown and evacuation procedures, with alarms blaring throughout the centre and major storefronts locking their doors to keep shoppers safe. Heavily armed specialist police officers stormed the centre in search of the teens, but they were unable to be found. Following hours of investigating, two boys, aged 15 and 16, were found, arrested and charged with assault, affray and aggravated robbery. The two teens will appear in the Adelaide Youth Court on Monday afternoon, and police continue to search for any outstanding suspects. Assistant Commissioner Duval said police knew the identity of a third offender, and encouraged him to turn himself in. “His identity is known, and at some point we will catch up with him,” he told Today. Duval said police believe the boys knew each other and it was "not a random attack". He also confirmed that police had seized two expandable batons from the teens, explaining, "It's a baton that effectively expands, not dissimilar to what police would use." "Certainly the possession of them is very concerning, that formed part of the allegation of what these boys were charged with." Following the incident, a spokesperson for Westfield issued a statement saying the safety of customers, business partners and people is their "highest priority". Image credits: Nine News

Legal

Trying to save money? Our research suggests paying in cash – while you still can

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/lachlan-schomburgk-1535737">Lachlan Schomburgk</a>, <a href="https://theconversation.com/institutions/university-of-adelaide-1119">University of Adelaide</a>; <a href="https://theconversation.com/profiles/alex-belli-1538870">Alex Belli</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a>, and <a href="https://theconversation.com/profiles/arvid-o-i-hoffmann-1150527">Arvid O. I. Hoffmann</a>, <a href="https://theconversation.com/institutions/university-of-adelaide-1119">University of Adelaide</a> Cash is in crisis. In Australia, it’s now only used for 16% of in-person transactions, down from <a href="https://www.rba.gov.au/publications/bulletin/2023/jun/cash-use-and-attitudes-in-australia.html">about 70%</a> in 2007. The situation is so dire that on Monday, independent federal MP Andrew Gee introduced a <a href="https://www.smh.com.au/politics/federal/saving-the-lobster-prawn-and-pineapple-mps-fight-to-force-shops-to-take-cash-20240603-p5jit4.html">private member’s bill</a> that would force businesses to accept cash or else face big fines. The reality is that over the past decade, technological advancements have utterly transformed the way we pay for goods and services. Phones and smartwatches can now easily be used to pay by card, and buy-now-pay-later schemes and cryptocurrency payments offer further alternatives. The shift away from cash only <a href="https://www.worldbank.org/en/news/press-release/2022/06/29/covid-19-drives-global-surge-in-use-of-digital-payments">accelerated</a> throughout the COVID pandemic, as health experts recommended avoiding using it for hygiene reasons. Despite these big changes in how we spend money, Australians have perhaps been more focused on how much amid a stubborn cost-of-living crisis. In light of this, our research team wanted to investigate how our choice of payment method can interact with our actual spending habits. Our <a href="https://www.sciencedirect.com/science/article/pii/S0022435924000216#bib0104">latest research</a> offers a simple solution for anyone looking to save money — carry more cash! <h2>We pay less when we pay cash</h2> Drawing on both academic and industry sources, our research team combined the results from more than four decades of prior research on spending behaviour and payment methods into a large dataset. This data spanned 71 research papers, 17 countries, and more than 11,000 participants. State-of-the-art meta-analysis techniques then allowed us to collectively analyse the results from all these prior studies, and re-examine their insights. We found that cashless payments were indeed associated with higher levels of consumer spending compared to cash transactions, something that is referred to in the literature as the “cashless effect”. This cashless effect was consistent across all other payment methods in the data set. Put simply, it doesn’t matter whether you use a credit card, debit card or a buy-now-pay-later service – you are likely to spend more money using cashless methods than when you pay with cash. <h2>The pain of paying</h2> Under the traditional economic view that consumers behave rationally, there should be no differences in spending behaviour between different payment methods – money is money after all. But the existence of the cashless effect shows that the payment methods we use do indeed influence our spending behaviour. The leading theory to explain this effect attributes it to differences in the “pain of paying”, a concept <a href="https://www.researchgate.net/publication/280711796_The_Pain_of_Paying">first coined in 1996</a> that describes the emotions we feel when spending money. Importantly, our choice of payment method can influence the level of pain felt. When paying with cash, we have to physically count out notes and coins and hand them over. Humans seek to avoid losses, and paying by cash sees us physically lose a tangible object. Conversely, nothing has to be handed over to pay cashlessly. We don’t lose anything tangible with a swipe or a tap, so it feels less painful. Preliminary neurological evidence suggests that the “pain of paying” isn’t just an abstract metaphor, and we may feel actual psychological pain with each transaction we make. <a href="https://papers.ssrn.com/sol3/papers.cfm?abstract_id=2901808">Research</a> employing functional magnetic resonance imaging (fMRI) scans to observe brain activity in consumers has shown that paying activates brain regions related to experiencing psychological discomfort. Picture this: You’re at a theme park, excited for a fun day. You use your smartwatch to pay for snacks, souvenirs and rides. It’s all so convenient that you don’t realise how much you’re spending until you check your account later and see that you have completely blown your budget! This is the cashless effect in action − if nothing is physically handed over, it’s easy to lose track of how much is spent. <h2>A great tool for budgeting – while it lasts</h2> The cost of living crisis has made spending control front-of-mind for many people. Our meta-analysis suggests that returning to “cold hard cash” whenever possible could be one valuable tool to help. The increased friction felt when using cash could help people better control their money, even just by providing a moment to pause and consider whether a transaction is necessary. This could help individuals make more mindful decisions, saving money while they can in an increasingly cashless world.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/231499/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/lachlan-schomburgk-1535737">Lachlan Schomburgk</a>, PhD Researcher in Marketing, <a href="https://theconversation.com/institutions/university-of-adelaide-1119">University of Adelaide</a>; <a href="https://theconversation.com/profiles/alex-belli-1538870">Alex Belli</a>, Senior Lecturer in Marketing, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a>, and <a href="https://theconversation.com/profiles/arvid-o-i-hoffmann-1150527">Arvid O. I. Hoffmann</a>, Professor of Marketing, <a href="https://theconversation.com/institutions/university-of-adelaide-1119">University of Adelaide</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/trying-to-save-money-our-research-suggests-paying-in-cash-while-you-still-can-231499">original article</a>. </div>

Money & Banking

‘Sleeping on it’ really does help and four other recent sleep research breakthroughs

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/dan-denis-158199">Dan Denis</a>, <a href="https://theconversation.com/institutions/university-of-york-1344">University of York</a> Twenty-six years. That is roughly <a href="https://www.nature.com/articles/s41467-022-34624-8">how much of our lives</a> are spent asleep. Scientists have been trying to explain why we spend so much time sleeping since at least the <a href="https://plato.stanford.edu/entries/alcmaeon/">ancient Greeks</a>, but pinning down the exact functions of sleep has proven to be difficult. During the past decade, there has been a surge of interest from researchers in the nature and function of sleep. New experimental models coupled with advances in technology and analytical techniques are giving us a deeper look inside the sleeping brain. Here are some of the biggest recent breakthroughs in the science of sleep. <h2>1. We know more about lucid dreaming</h2> No longer on the fringes, the neuroscientific study of dreaming has now become mainstream. US researchers in a 2017 study woke their participants up at regular intervals during the night and asked them what was going through their minds prior to the alarm call. Sometimes participants couldn’t recall any dreaming. The study team then looked at what was <a href="https://www.nature.com/articles/nn.4545">happening in the participant’s brain</a> moments before waking. Participants’ recall of dream content was associated with increased activity in the posterior hot zone, an area of the brain closely <a href="https://www.nature.com/articles/d41586-018-05097-x">linked to conscious awareness</a>. Researchers could predict the presence or absence of dream experiences by monitoring this zone in real time. Another exciting development in the study of dreams is research into lucid dreams, in which <a href="https://theconversation.com/the-ability-to-control-dreams-may-help-us-unravel-the-mystery-of-consciousness-52394">you are aware that</a> you are dreaming. A 2021 study established <a href="https://www.cell.com/current-biology/fulltext/S0960-9822(21)00059-2?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982221000592%3Fshowall%3Dtrue">two-way communication</a> between a dreamer and a researcher. In this experiment, participants signalled to the researcher that they were dreaming by moving their eyes in a pre-agreed pattern. The researcher read out maths problems (what is eight minus six?). The dreamer could respond to this question with eye movements. The dreamers were accurate, indicating they had access to high level cognitive functions. The researchers used <a href="https://www.mayoclinic.org/tests-procedures/polysomnography/about/pac-20394877">polysomnography</a>, which monitors bodily functions such as breathing and brain activity during sleep, to confirm that participants were asleep. These discoveries have dream researchers excited about the future of “interactive dreaming”, such as practising a skill or solving a problem in our dreams. <h2>2. Our brain replays memories while we sleep</h2> This year marks the centenary of the first demonstration that <a href="https://www.jstor.org/stable/1414040?origin=crossref">sleep improves our memory</a>. However, a 2023 review of recent research has shown that memories formed during the day <a href="https://portlandpress.com/emergtoplifesci/article/7/5/487/233796/Neural-reactivation-during-human-sleep">get reactivated</a> while we are sleeping. Researchers discovered this using machine learning techniques to “decode” the contents of the sleeping brain. <a href="https://www.nature.com/articles/s41467-021-24357-5">A 2021 study</a> found that training algorithms to distinguish between different memories while awake makes it possible to see the same neural patterns re-emerge in the sleeping brain. A different study, also in 2021, found that the more times these patterns re-emerge during sleep, <a href="https://www.nature.com/articles/s41467-021-23520-2">the bigger the benefit</a> to memory. In other approaches, scientists have been able to reactivate certain memories by <a href="https://www.cell.com/current-biology/fulltext/S0960-9822(19)31035-8?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982219310358%3Fshowall%3Dtrue">replaying sounds</a> associated with the memory in question while the participant was asleep. A <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7144680/">2020 meta-analysis of 91 experiments</a> found that when participants’ memory was tested after sleep they remembered more of the stimuli whose sounds were played back during sleep, compared with control stimuli whose sounds were not replayed. Research has also shown that sleep strengthens memory for the <a href="https://www.pnas.org/doi/10.1073/pnas.2202657119">most important aspects</a> of an experience, restructures our memories to form <a href="https://www.jneurosci.org/content/40/9/1909">more cohesive narratives</a> and helps us come up with <a href="https://journals.sagepub.com/doi/10.1177/0956797619873344">solutions to problems</a> we are stuck on. Science is showing that sleeping on it really does help. <h2>3. Sleep keeps our minds healthy</h2> We all know that a lack of sleep makes us feel bad. Laboratory sleep deprivation studies, where researchers keep willing participants awake throughout the night, have been combined with <a href="https://www.open.edu/openlearn/body-mind/health/health-sciences/how-fmri-works">functional MRI brain scans</a> to paint a detailed picture of the sleep-deprived brain. These studies have shown that a lack of sleep severely disrupts the <a href="https://www.nature.com/articles/nrn.2017.55">connectivity between</a> different brain networks. These changes include a breakdown of connectivity between brain regions <a href="https://link.springer.com/article/10.1007/s11682-018-9868-2">responsible for cognitive control</a>, and an amplification of those involved in <a href="https://www.cell.com/current-biology/fulltext/S0960-9822(19)30761-4?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982219307614%3Fshowall%3Dtrue">threat and emotional processing</a>. The consequence of this is that the sleep-deprived brain is worse at <a href="https://academic.oup.com/cercor/article/33/5/1610/6573958">learning new information</a>, <a href="https://academic.oup.com/sleep/article/44/6/zsaa289/6053003">poorer at regulating emotions</a>, and unable to <a href="https://journals.sagepub.com/doi/10.1177/2167702620951511">suppress intrusive thoughts</a>. Sleep loss may even make you less likely to <a href="https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3001733">help other people</a>. These findings may explain why poor sleep quality is so <a href="https://onlinelibrary.wiley.com/doi/10.1111/jsr.13930">ubiquitous in poor mental health</a>. <h2>4. Sleep protects us against neurodegenerative diseases</h2> Although we naturally <a href="https://www.nature.com/articles/s41467-022-34624-8">sleep less as we age</a>, mounting evidence suggests that sleep problems earlier in life <a href="https://jnnp.bmj.com/content/91/3/236">increase the risk</a> of dementia. The build-up of β-amyloid, a <a href="https://www.nhs.uk/conditions/alzheimers-disease/causes/">metabolic waste product</a>, is one of the mechanisms underlying Alzheimer’s disease. Recently, it has become apparent that deep, undisturbed sleep is good for <a href="https://www.science.org/doi/10.1126/sciadv.aav5447">flushing these toxins</a> out of the brain. Sleep deprivation increases the the rate of build-up of β-amyloid in parts of the brain involved in memory, <a href="https://www.pnas.org/doi/full/10.1073/pnas.1721694115">such as the hippocampus</a>. A longitudinal study published in 2020 found that sleep problems were associated with a higher rate of β-amyloid accumulation at a follow-up <a href="https://www.cell.com/current-biology/fulltext/S0960-9822(20)31171-4?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982220311714%3Fshowall%3Dtrue">four years later</a>. In a different study, published in 2022, sleep parameters <a href="https://elifesciences.org/articles/78191">forecasted the rate</a> of cognitive decline in participants over the following two years. <h2>5. We can engineer sleep</h2> The good news is that research is developing treatments to get a better night’s sleep and boost its benefits. For example, the <a href="https://onlinelibrary.wiley.com/doi/10.1111/jsr.14035">European Sleep Research Society</a> and the <a href="https://jcsm.aasm.org/doi/10.5664/jcsm.8986">American Academy of Sleep Medicine</a> recommend cognitive behavioural therapy for insomnia (CBT-I). <a href="https://www.cntw.nhs.uk/services/nctalkingtherapies/what-do-nc-talking-therapies-offer/cbt-i-cbt-for-insomnia/">CBT-I works by</a> identifying thoughts, feelings and behaviour that contribute to insomnia, which can then be modified to help promote sleep. In 2022, a CBT-I app became the <a href="https://www.nice.org.uk/news/article/nice-recommends-offering-app-based-treatment-for-people-with-insomnia-instead-of-sleeping-pills">first digital therapy</a> recommended by England’s National Institute for Health and Care Excellence for treatment on the NHS. These interventions can improve other aspects of our lives as well. A <a href="https://www.sciencedirect.com/science/article/pii/S1087079221001416?via%3Dihub">2021 meta-analysis</a> of 65 clinical trials found that improving sleep via CBT-I reduced symptoms of depression, anxiety, rumination and stress.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/230484/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/dan-denis-158199">Dan Denis</a>, Marie Skłodowska-Curie Senior Research Fellow, <a href="https://theconversation.com/institutions/university-of-york-1344">University of York</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/sleeping-on-it-really-does-help-and-four-other-recent-sleep-research-breakthroughs-230484">original article</a>. </div>

Body

Miss World Australia attacked outside shopping centre

Miss World Australia has taken aim at the lack of police response after she called Triple Zero for urgent assistance when she was attacked. Jasmine Stringer was running a workshop with a group of aspiring young pageant contestants at a Gold Coast shopping centre on Friday night, when a woman lunged towards the group in a random attack. "This person was hurling abuse at the young girls and then charged at me from across the road and punched me straight in the face," Jasmine told <a href="https://9now.nine.com.au/today/miss-world-australia-and-children-attacked-during-gold-coast-shopping-centre-event/cf15799c-99e7-45ee-b143-519bcff1114f" target="_blank" rel="noopener">Today</a>. "I fended her off and then she turned her sights to a 14-year-old girl." While doing her best to protect herself and the young girls, Jasmine called Triple Zero for assistance. As the young girls fled from the scene, Jasmine waited for police - or members of the public - to help, and was met with no response. "I guess the most concerning part of this whole story for me is that I called Triple Zero, we are in the Southport CBD of the Gold Coast, less than three kilometres from the police station and in a 15-minute time frame when women and children are being assaulted, there was no one turning up to help," the 27-year-old said. "I stayed there for 20 minutes on the call with the dispatcher and I was starting to get stressed, this woman was still physically attacking these children as they're trying to get into cars and taxis and it was escalating and I asked 'is someone coming?' and they were quite dismissive to me." As part of her Miss World Australia advocacy work, Jasmine has devoted a lot of time and effort into preventing violence against women, and says this attack is the second time within a month that she's called for help from police after witnessing a violent incident and there's been nobody there to help. 'I'm going to go to the police station today just make sure that the report is made and hopefully have the person who attacked us charged," she said. "But at this point in time, I've received no follow up from the police and it's been a really distressing situation." Image credits: Today

Legal

Are young people smarter than older adults? My research shows cognitive differences between generations are diminishing

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/stephen-badham-1531316">Stephen Badham</a>, <a href="https://theconversation.com/institutions/nottingham-trent-university-1338">Nottingham Trent University</a> We often assume young people are smarter, or at least quicker, than older people. For example, we’ve all heard that scientists, and even more so mathematicians, <a href="https://www.forbes.com/sites/nextavenue/2014/08/07/who-says-scientists-peak-by-age-50/">carry out their most important work</a> when they’re comparatively young. But my new research, <a href="https://www.sciencedirect.com/science/article/pii/S027322972400008X#:%7E:text=Highlights&text=Three%20review%20studies%20measure%20secular,%2C%20education%2C%20and%20overall%20health.">published in Developmental Review</a>, suggests that cognitive differences between the old and young are tapering off over time. This is hugely important as stereotypes about the intelligence of people in their sixties or older may be holding them back – in the workplace and beyond. Cognitive ageing is often measured by comparing young adults, aged 18-30, to older adults, aged 65 and over. There are a variety of tasks that older adults do not perform well on compared to young adults, such as memory, spatial ability and speed of processing, which often form the basis of <a href="https://theconversation.com/the-iq-test-wars-why-screening-for-intelligence-is-still-so-controversial-81428">IQ tests</a>. That said, there are a few tasks that older people do better at than younger people, such as reading comprehension and vocabulary. Declines in cognition are driven by a process called <a href="https://www.nature.com/collections/cbjacdabdf">cognitive ageing</a>, which happens to everyone. Surprisingly, age-related cognitive deficits start very early in adulthood, and declines in cognition have been measured as dropping in adults as young as just 25. Often, it is only when people reach older age that these effects add up to a noticeable amount. Common complaints consist of walking into a room and forgetting why you entered, as well as difficulty remembering names and struggling to drive in the dark. <h2>The trouble with comparison</h2> Sometimes, comparing young adults to older adults can be misleading though. The two generations were brought up in different times, with different levels of education, healthcare and nutrition. They also lead different daily lives, with some older people having lived though a world war while the youngest generation is growing up with the internet. Most of these factors favour the younger generation, and this can explain a proportion of their advantage in cognitive tasks. Indeed, much existing research shows that <a href="https://theconversation.com/iq-tests-are-humans-getting-smarter-158837">IQ has been improving</a> globally throughout the 20th century. This means that later-born generations are more cognitively able than those born earlier. This is even found when both generations are tested in the same way at the same age. Currently, there is growing evidence that <a href="https://www.pnas.org/doi/10.1073/pnas.1718793115">increases in IQ are levelling off,</a> such that, in the most recent couple of decades, young adults are no more cognitively able than young adults born shortly beforehand. Together, these factors may underlie the current result, namely that cognitive differences between young and older adults are diminishing over time. <h2>New results</h2> My research began when my team started getting strange results in our lab. We found that often the age differences we were getting between young and older adults was smaller or absent, compared to prior research from early 2000s. This prompted me to start looking at trends in age differences across the psychological literature in this area. I uncovered a variety of data that compared young and older adults from the 1960s up to the current day. I plotted this data against year of publication, and found that age deficits have been getting smaller over the last six decades. Next, I assessed if the average increases in cognitive ability over time seen across all individuals was a result that also applied to older adults specifically. Many large databases exist where groups of individuals are recruited every few years to take part in the same tests. I analysed studies using these data sets to look at older adults. I found that, just like younger people, older adults were indeed becoming more cognitively able with each cohort. But if differences are disappearing, does that mean younger people’s improvements in cognitive ability have slowed down or that older people’s have increased? I analysed data from my own laboratory that I had gathered over a seven-year period to find out. Here, I was able to dissociate the performance of the young from the performance of the older. I found that each cohort of young adults was performing to a similar extent across this seven-year period, but that older adults were showing improvements in both processing speed and vocabulary scores. <figure class="align-center "><img src="https://images.theconversation.com/files/591482/original/file-20240501-24-esxcic.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/591482/original/file-20240501-24-esxcic.png?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=333&fit=crop&dpr=1 600w, https://images.theconversation.com/files/591482/original/file-20240501-24-esxcic.png?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=333&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/591482/original/file-20240501-24-esxcic.png?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=333&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/591482/original/file-20240501-24-esxcic.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=418&fit=crop&dpr=1 754w, https://images.theconversation.com/files/591482/original/file-20240501-24-esxcic.png?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=418&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/591482/original/file-20240501-24-esxcic.png?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=418&fit=crop&dpr=3 2262w" alt="The figure shows data for a speed-based task where higher scores represent better performance." /><figcaption>The figure shows data for a speed-based task where higher scores represent better performance. <a class="license" href="http://creativecommons.org/licenses/by-sa/4.0/">CC BY-SA</a></figcaption></figure> I believe the older adults of today are benefiting from many of the factors previously most applicable to young adults. For example, the number of children who went to school <a href="https://education-uk.org/history/chapter12.html">increased significantly</a> in the 1960s – with the system being more similar to what it is today than what it was at the start of the 20th century. This is being reflected in that cohort’s increased scores today, now they are older adults. At the same time, young adults have hit a ceiling and are no longer improving as much with each cohort. It is not entirely clear why the young generations have stopped improving so much. Some research has <a href="https://doi.org/10.1016/j.intell.2016.10.002">explored maternal age, mental health and even evolutionary trends</a>. I favour the opinion that there is just a natural ceiling – a limit to how much factors such as education, nutrition and health can improve cognitive performance. These data have important implications for research into dementia. For example, it is possible that a modern older adult in the early stages of dementia might pass a dementia test that was designed 20 or 30 years ago for the general population at that time. Therefore, as older adults are performing better in general than previous generations, it may be necessary to revise definitions of dementia that depend on an individuals’ expected level of ability. Ultimately, we need to rethink what it means to become older. And there’s finally some good news. Ultimately, we can expect to be more cognitively able than our grandparents were when we reach their age.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/229132/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/stephen-badham-1531316">Stephen Badham</a>, Professor of Psychology, <a href="https://theconversation.com/institutions/nottingham-trent-university-1338">Nottingham Trent University</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/are-young-people-smarter-than-older-adults-my-research-shows-cognitive-differences-between-generations-are-diminishing-229132">original article</a>. </div>

Mind

How much time should you spend sitting versus standing? New research reveals the perfect mix for optimal health

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/christian-brakenridge-1295221">Christian Brakenridge</a>, <a href="https://theconversation.com/institutions/baker-heart-and-diabetes-institute-974">Baker Heart and Diabetes Institute</a> People have a pretty intuitive sense of what is healthy – standing is better than sitting, exercise is great for overall health and getting <a href="https://theconversation.com/could-not-getting-enough-sleep-increase-your-risk-of-type-2-diabetes-225179">good sleep is imperative</a>. However, if exercise in the evening may disrupt our sleep, or make us feel the need to be more sedentary to recover, a key question emerges – what is the best way to balance our 24 hours to optimise our health? <a href="https://link.springer.com/article/10.1007/s00125-024-06145-0">Our research</a> attempted to answer this for risk factors for heart disease, stroke and diabetes. We found the optimal amount of sleep was 8.3 hours, while for light activity and moderate to vigorous activity, it was best to get 2.2 hours each. <iframe id="dw4bx" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/dw4bx/" width="100%" height="400px" frameborder="0"></iframe> <h2>Finding the right balance</h2> Current health guidelines recommend you stick to a <a href="https://www.health.gov.au/topics/physical-activity-and-exercise/physical-activity-and-exercise-guidelines-for-all-australians/for-adults-18-to-64-years">sensible regime</a> of moderate-to vigorous-intensity physical activity 2.5–5 hours per week. However <a href="https://doi.org/10.1016/j.jacc.2019.02.031">mounting evidence</a> now <a href="https://doi.org/10.2337/dc14-2073">suggests</a> how you spend your day can have meaningful ramifications for your health. In addition to moderate-to vigorous-intensity physical activity, this means the time you spend sitting, standing, doing light physical activity (such as walking around your house or office) and sleeping. Our research looked at more than 2,000 adults who wore body sensors that could interpret their physical behaviours, for seven days. This gave us a sense of how they spent their average 24 hours. At the start of the study participants had their waist circumference, blood sugar and insulin sensitivity measured. The body sensor and assessment data was matched and analysed then tested against health risk markers — such as a heart disease and stroke risk score — to create a model. Using this model, we fed through thousands of permutations of 24 hours and found the ones with the estimated lowest associations with heart disease risk and blood-glucose levels. This created many optimal mixes of sitting, standing, light and moderate intensity activity. When we looked at waist circumference, blood sugar, insulin sensitivity and a heart disease and stroke risk score, we noted differing optimal time zones. Where those zones mutually overlapped was ascribed the optimal zone for heart disease and diabetes risk. <h2>You’re doing more physical activity than you think</h2> We found light-intensity physical activity (defined as walking less than 100 steps per minute) – such as walking to the water cooler, the bathroom, or strolling casually with friends – had strong associations with glucose control, and especially in people with type 2 diabetes. This light-intensity physical activity is likely accumulated intermittently throughout the day rather than being a purposeful bout of light exercise. Our experimental evidence shows that <a href="https://diabetesjournals.org/care/article/39/6/964/29532/Benefits-for-Type-2-Diabetes-of-Interrupting">interrupting our sitting</a> regularly with light-physical activity (such as taking a 3–5 minute walk every hour) can improve our metabolism, especially so after lunch. While the moderate-to-vigorous physical activity time might seem a quite high, at more than 2 hours a day, we defined it as more than 100 steps per minute. This equates to a brisk walk. It should be noted that these findings are preliminary. This is the first study of heart disease and diabetes risk and the “optimal” 24 hours, and the results will need further confirmation with longer prospective studies. The data is also cross-sectional. This means that the estimates of time use are correlated with the disease risk factors, meaning it’s unclear whether how participants spent their time influences their risk factors or whether those risk factors influence how someone spends their time. <h2>Australia’s adult physical activity guidelines need updating</h2> Australia’s <a href="https://www.health.gov.au/topics/physical-activity-and-exercise/physical-activity-and-exercise-guidelines-for-all-australians/for-adults-18-to-64-years">physical activity guidelines</a> currently only recommend exercise intensity and time. A <a href="https://www.uow.edu.au/media/2023/why-adults-need-to-move-more-stop-sitting-and-sleep-better-.php">new set of guidelines</a> are being developed to incorporate 24-hour movement. Soon Australians will be able to use these guidelines to examine their 24 hours and understand where they can make improvements. While our new research can inform the upcoming guidelines, we should keep in mind that the recommendations are like a north star: something to head towards to improve your health. In principle this means reducing sitting time where possible, increasing standing and light-intensity physical activity, increasing more vigorous intensity physical activity, and aiming for a healthy sleep of 7.5–9 hours per night. Beneficial changes could come in the form of reducing screen time in the evening or opting for an active commute over driving commute, or prioritising an earlier bed time over watching television in the evening. It’s also important to acknowledge these are recommendations for an able adult. We all have different considerations, and above all, movement should be fun.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/228894/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/christian-brakenridge-1295221">Christian Brakenridge</a>, Postdoctoral research fellow at Swinburne University, Centre for Urban Transitions, <a href="https://theconversation.com/institutions/baker-heart-and-diabetes-institute-974">Baker Heart and Diabetes Institute</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-much-time-should-you-spend-sitting-versus-standing-new-research-reveals-the-perfect-mix-for-optimal-health-228894">original article</a>. </div>

Body

What is childhood dementia? And how could new research help?

<div class="theconversation-article-body"> <a href="https://theconversation.com/profiles/kim-hemsley-1529322">Kim Hemsley</a>, <a href="https://theconversation.com/institutions/flinders-university-972">Flinders University</a>; <a href="https://theconversation.com/profiles/nicholas-smith-1529324">Nicholas Smith</a>, <a href="https://theconversation.com/institutions/university-of-adelaide-1119">University of Adelaide</a>, and <a href="https://theconversation.com/profiles/siti-mubarokah-1529323">Siti Mubarokah</a>, <a href="https://theconversation.com/institutions/flinders-university-972">Flinders University</a> “Childhood” and “dementia” are two words we wish we didn’t have to use together. But sadly, around <a href="https://doi.org/10.1093/brain/awad242">1,400 Australian children and young people</a> live with currently untreatable childhood dementia. Broadly speaking, childhood dementia is caused by any one of <a href="https://www.childhooddementia.org/what-is-childhood-dementia#what">more than 100</a> rare genetic disorders. Although the causes differ from dementia acquired later in life, the progressive nature of the illness is the same. <a href="https://doi.org/10.1093/brain/awad242">Half</a> of infants and children diagnosed with childhood dementia will not reach their tenth birthday, and most will die <a href="https://www.childhooddementia.org/what-is-childhood-dementia#what">before turning 18</a>. Yet this devastating condition has lacked awareness, and importantly, the research attention needed to work towards treatments and a cure. <h2>More about the causes</h2> Most types of childhood dementia are <a href="https://academic.oup.com/brain/article/146/11/4446/7226999">caused</a> by <a href="https://www.genome.gov/genetics-glossary/Mutation">mutations</a> (or mistakes) in our <a href="https://www.genome.gov/genetics-glossary/Deoxyribonucleic-Acid">DNA</a>. These mistakes lead to a range of rare genetic disorders, which in turn cause childhood dementia. <a href="https://doi.org/10.1093/brain/awad242">Two-thirds</a> of childhood dementia disorders are caused by “<a href="https://www.ncbi.nlm.nih.gov/books/NBK459183/">inborn errors of metabolism</a>”. This means the metabolic pathways involved in the breakdown of carbohydrates, lipids, fatty acids and proteins in the body fail. As a result, nerve pathways fail to function, neurons (nerve cells that send messages around the body) die, and progressive cognitive decline occurs. <h2>What happens to children with childhood dementia?</h2> Most children initially appear unaffected. But after a period of apparently normal development, children with childhood dementia <a href="https://doi.org/10.1016/j.pediatrneurol.2023.09.006">progressively lose</a> all previously acquired skills and abilities, such as talking, walking, learning, remembering and reasoning. Childhood dementia also leads to significant changes in behaviour, such as aggression and hyperactivity. Severe sleep disturbance is common and vision and hearing can also be affected. Many children have seizures. The age when symptoms start can vary, depending partly on the particular genetic disorder causing the dementia, but the average is around <a href="https://doi.org/10.1093%2Fbrain%2Fawad242">two years old</a>. The symptoms are caused by significant, progressive brain damage. <h2>Are there any treatments available?</h2> Childhood dementia treatments currently <a href="https://www.childhooddementia.org/news/report-reveals-global-research-inequity">under evaluation</a> or approved are for a very limited number of disorders, and are only available in some parts of the world. These include gene replacement, <a href="https://doi.org/10.1002/jmd2.12378">gene-modified cell therapy</a> and protein or <a href="https://www.nejm.org/doi/full/10.1056/NEJMoa1712649">enzyme replacement therapy</a>. Enzyme replacement therapy is available in Australia for <a href="https://australianprescriber.tg.org.au/articles/cerliponase-alfa-for-neuronal-ceroid-lipofuscinosis-type-2-disease.html">one form of childhood dementia</a>. These therapies attempt to “fix” the problems causing the disease, and have shown promising results. Other experimental therapies include ones that <a href="https://doi.org/10.3390/life12050608">target</a> faulty protein production or <a href="https://doi.org/10.1056/nejmoa2310151">reduce inflammation</a> in the brain. <h2>Research attention is lacking</h2> Death rates for Australian children with cancer <a href="http://www.childhooddementia.org/getasset/2WX39O">nearly halved</a> between <a href="https://www.aihw.gov.au/reports/children-youth/australias-children/contents/health/cancer-incidence-survival">1997 and 2017</a> thanks to research that has enabled the development of multiple treatments. But over recent decades, <a href="http://www.childhooddementia.org/getasset/2WX39O">nothing has changed</a> for children with dementia. In 2017–2023, research for childhood cancer received over four times more funding per patient compared to funding for <a href="https://www.childhooddementia.org/getasset/2WX39O">childhood dementia</a>. This is despite childhood dementia causing a <a href="https://doi.org/10.1093/brain/awad242">similar number of deaths</a> each year as childhood cancer. The success <a href="https://www.aihw.gov.au/reports/children-youth/australias-children/contents/health/cancer-incidence-survival">for childhood cancer sufferers</a> in recent decades demonstrates how adequately funding medical research can lead to improvements in patient outcomes. Another bottleneck for childhood dementia patients in Australia is the lack of access to clinical trials. An <a href="https://www.childhooddementia.org/news/report-reveals-global-research-inequity">analysis</a> published in March this year showed that in December 2023, only two clinical trials were recruiting patients with childhood dementia in Australia. Worldwide however, 54 trials were recruiting, meaning Australian patients and their families are left watching patients in other parts of the world receive potentially lifesaving treatments, with no recourse themselves. That said, we’ve seen a slowing in the establishment of <a href="https://www.childhooddementia.org/news/report-reveals-global-research-inequity">clinical trials</a> for childhood dementia across the world in recent years. In addition, we know from <a href="https://www.childhooddementia.org/join-us/professionals/impacts">consultation with families</a> that current care and support systems <a href="https://www.childhooddementia.org/getasset/44MLP8">are not meeting the needs</a> of children with dementia and their families. <h2>New research</h2> Recently, we were awarded <a href="https://www.premier.sa.gov.au/media-releases/news-items/major-funding-boost-for-research-into-childhood-dementia">new funding</a> for <a href="https://www.flinders.edu.au/giving/our-donors/impact-of-giving/improving-the-lives-of-children-with-dementia">our research</a> on childhood dementia. This will help us continue and expand studies that seek to develop lifesaving treatments. More broadly, we need to see increased funding in Australia and around the world for research to develop and translate treatments for the broad spectrum of childhood dementia conditions. Dr Kristina Elvidge, head of research at the <a href="https://www.childhooddementia.org/our-people">Childhood Dementia Initiative</a>, and Megan Maack, director and CEO, contributed to this article.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/228508/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/kim-hemsley-1529322">Kim Hemsley</a>, Head, Childhood Dementia Research Group, Flinders Health and Medical Research Institute, College of Medicine and Public Health, <a href="https://theconversation.com/institutions/flinders-university-972">Flinders University</a>; <a href="https://theconversation.com/profiles/nicholas-smith-1529324">Nicholas Smith</a>, Head, Paediatric Neurodegenerative Diseases Research Group, <a href="https://theconversation.com/institutions/university-of-adelaide-1119">University of Adelaide</a>, and <a href="https://theconversation.com/profiles/siti-mubarokah-1529323">Siti Mubarokah</a>, Research Associate, Childhood Dementia Research Group, Flinders Health and Medical Research Institute, College of Medicine and Public Health, <a href="https://theconversation.com/institutions/flinders-university-972">Flinders University</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/what-is-childhood-dementia-and-how-could-new-research-help-228508">original article</a>. </div>

Mind

Do optimists really live longer? Here’s what the research says

<a href="https://theconversation.com/profiles/fuschia-sirois-331254">Fuschia Sirois</a>, <a href="https://theconversation.com/institutions/durham-university-867">Durham University</a> Do you tend to see the glass as half full, rather than half empty? Are you always looking on the bright side of life? If so, you may be surprised to learn that this tendency could actually be good for your health. A <a href="https://content.apa.org/record/2020-71981-001">number of studies</a> have shown that optimists enjoy higher levels of wellbeing, better sleep, lower stress and even better cardiovascular health and immune function. And now, <a href="https://pubmed.ncbi.nlm.nih.gov/35674052/">a recent study</a> has shown that being an optimist is linked to longer life. To conduct their study, researchers tracked the lifespan of nearly 160,000 women aged between 50 to 79 for a period of 26 years. At the beginning of the study, the women completed a <a href="https://local.psy.miami.edu/people/faculty/ccarver/availbale-self-report-instruments/lot-r/">self-report measure of optimism</a>. Women with the highest scores on the measure were categorised as optimists. Those with the lowest scores were considered pessimists. Then, in 2019, the researchers followed up with the participants who were still living. They also looked at the lifespan of participants who had died. What they found was that those who had the highest levels of optimism were more likely to live longer. More importantly, the optimists were also more likely than those who were pessimists to live into their nineties. Researchers refer to this as “exceptional longevity”, considering the average lifespan for women is about 83 years in developed countries. What makes these findings especially impressive is that the results remained even after accounting for other factors known to predict a long life – including education level and economic status, ethnicity, and whether a person suffered from depression or other chronic health conditions. But given this study only looked at women, it’s uncertain whether the same would be true for men. However, <a href="https://www.pnas.org/doi/abs/10.1073/pnas.1900712116">another study</a> which looked at both men and women also found that people with the highest levels of optimism enjoyed a lifespan that was between 11% and 15% longer than those who were the least optimistic. <h2>The fountain of youth?</h2> So why is it that optimists live longer? At first glance it would seem that it may have to do with their healthier lifestyle. For example, <a href="https://www.ahajournals.org/doi/10.1161/CIRCRESAHA.117.310828">research from several studies</a> has found that optimism is linked to eating a healthy diet, staying physically active, and being less likely to smoke cigarettes. These healthy behaviours are well known to improve heart health and <a href="https://www.who.int/news-room/fact-sheets/detail/noncommunicable-diseases">reduce the risk</a> for cardiovascular disease, which is a <a href="https://www.who.int/news-room/fact-sheets/detail/cardiovascular-diseases-(cvds)">leading cause of death</a> globally. Adopting a healthy lifestyle is also <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3857242/">important for reducing the risk</a> of other potentially deadly diseases, such as diabetes and cancer. But having a healthy lifestyle may only be part of the reason optimists live a longer than average life. This latest study found that lifestyle only accounted for 24% of the link between optimism and longevity. This suggests a number of other factors affect longevity for optimists. Another possible reason could be due to the way optimists manage stress. When faced with a stressful situation, optimists tend to deal with it head-on. They <a href="https://pubmed.ncbi.nlm.nih.gov/16859439/">use adaptive coping strategies</a> that help them resolve the source of the stress, or view the situation in a less stressful way. For example, optimists will problem-solve and plan ways to deal with the stressor, call on others for support, or try to find a “silver lining” in the stressful situation. All of these approaches are well-known to reduce feelings of stress, as well as the biological reactions that occur when we feel stressed. It’s these <a href="https://www.apa.org/topics/stress/body">biological reactions to stress</a> –- such as elevated cortisol (sometimes called the “stress hormone”), increased heart rate and blood pressure, and impaired immune system functioning –- that can take a toll on health over time and increase the risk for developing <a href="https://www.sciencedirect.com/science/article/pii/S0889159115004316?via%3Dihub">life-threatening diseases</a>, such as cardiovascular disease. In short, the way optimists cope with stress may help protect them somewhat against its harmful effects. <h2>Looking on the bright side</h2> Optimism is typically viewed by researchers as a relatively stable personality trait that is determined by both <a href="https://www.cambridge.org/core/journals/twin-research-and-human-genetics/article/sex-differences-in-the-genetic-architecture-of-optimism-and-health-and-their-interrelation-a-study-of-australian-and-swedish-twins/58F21AA11943D44B4BA4C63A966E6AC7">genetic</a> and early childhood influences (such as having a <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6541423/">secure and warm relationship</a> with your parents or caregivers). But if you’re not naturally prone to seeing the glass as half full, there are some ways you can increase your <a href="https://www.tandfonline.com/doi/abs/10.1080/17439760.2016.1221122?journalCode=rpos20">capacity to be optimistic</a>. Research shows optimism can change over time, and can be cultivated by engaging in simple exercises. For example, visualising and then writing about your “<a href="https://www.psychologytoday.com/us/blog/what-matters-most/201303/what-is-your-best-possible-self">best possible self</a>” (a future version of yourself who has accomplished your goals) is a technique that studies have found can <a href="https://www.tandfonline.com/doi/full/10.1080/17439760.2016.1221122">significantly increase optimism</a>, at least temporarily. But for best results, the goals need to be both positive and reasonable, rather than just wishful thinking. Similarly, simply <a href="https://www.tandfonline.com/doi/abs/10.3200/SOCP.149.3.349-364">thinking about positive future events</a> can also be effective for boosting optimism. It’s also crucial to temper any expectations for success with an accurate view of what you can and can’t control. Optimism is reinforced when we experience the positive outcomes that we expect, and <a href="https://psycnet.apa.org/record/1970-20680-001">can decrease</a> when these outcomes aren’t as we want them to be. Although more research is needed, it’s possible that regularly envisioning yourself as having the best possible outcomes, and taking realistic steps towards achieving them, can help develop an optimistic mindset. Of course, this might be easier said than done for some. If you’re someone who isn’t naturally optimistic, the best chances to improve your longevity is by <a href="https://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1003332">living a healthy lifestyle</a> by staying physically active, eating a healthy diet, managing stress, and getting a good night’s sleep. Add to this cultivating a more optimistic mindset and you might further increase your chances for a long life.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/184785/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/fuschia-sirois-331254">Fuschia Sirois</a>, Professor in Social & Health Psychology, <a href="https://theconversation.com/institutions/durham-university-867">Durham University</a> Image credits: Shutterstock This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/do-optimists-really-live-longer-heres-what-the-research-says-184785">original article</a>.

Caring

Eating some chocolate really might be good for you – here’s what the research says

<a href="https://theconversation.com/profiles/dan-baumgardt-1451396">Dan Baumgardt</a>, <a href="https://theconversation.com/institutions/university-of-bristol-1211">University of Bristol</a> Although it always makes me scoff slightly to see Easter eggs making their first appearance in supermarkets at the end of December, there are few people who aren’t delighted to receive a bit of chocolate every year. It makes sense that too much chocolate would be bad for you because of the high fat and sugar content in most products. But what should we make of common claims that eating some chocolate is actually good for you? Happily, there is a fair amount of evidence that shows, in the right circumstances, chocolate may be both beneficial for your heart and good for your mental state. In fact, chocolate – or more specifically cacao, the raw, unrefined bean – is a medicinal wonder. It contains many different active compounds which can evoke pharmacological effects within the body, like medicines or drugs. Compounds that lead to neurological effects in the brain have to be able to cross the <a href="https://link.springer.com/chapter/10.1007/978-3-642-13443-2_7">blood-brain barrier</a>, the protective shield which prevents harmful substances – like toxins and bacteria – entering the delicate nervous tissue. One of these is the compound <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3672386/">theobromine</a>, which is also found in tea and contributes towards its bitter taste. Tea and chocolate also contain caffeine, which theobromine is related to as part of the purine family of chemicals. These chemicals, among others, contribute to chocolate’s addictive nature. They have the ability to cross the blood-brain barrier, where they can influence the nervous system. They are therefore known as <a href="https://pubmed.ncbi.nlm.nih.gov/15549276/">psychoactive</a> chemicals. <figure><iframe src="https://www.youtube.com/embed/HloqayQdR6M?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> What effects can chocolate have on mood? Well, <a href="https://academic.oup.com/nutritionreviews/article/71/10/665/1931144?login=false">a systematic review</a> looked at a group of studies which examined the feelings and emotions associated with consuming chocolate. Most demonstrated improvements in mood, anxiety, energy and states of arousal. Some noted the feeling of guilt, which is perhaps something we’ve all felt after one too many Dairy Milks. <h2>Health benefits of cocoa</h2> There are other organs, aside from the brain, that might benefit from the medicinal effects of cocoa. For centuries, chocolate has been used as a medicine to treat a <a href="https://pubmed.ncbi.nlm.nih.gov/10917925/">long list of diseases</a> including anaemia, tuberculosis, gout and even low libido. These might be spurious claims but there is evidence to suggest that eating cacao has a positive effect on the cardiovascular system. First, it can prevent <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8068178/">endothelial dysfunction</a>. This is the process through which arteries harden and get laden down with fatty plaques, which can in turn lead to heart attacks and strokes. Eating dark chocolate may also reduce <a href="https://www.sciencedirect.com/science/article/pii/S1537189115001135?via%3Dihub">blood pressure</a>, which is another risk factor for developing arterial disease, and prevent formation of clots which block up blood vessels. <figure><iframe src="https://www.youtube.com/embed/8VUcPCbSSCY?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> Some studies have suggested that dark chocolate might be useful in adjusting ratios of <a href="https://pubmed.ncbi.nlm.nih.gov/20968113/">high-density lipoprotein cholesterol</a>, which can help protect the heart. Others have examined insulin resistance, the phenomenon associated with Type 2 diabetes and weight gain. They suggest that the <a href="https://www.sciencedirect.com/science/article/pii/S0963996900000697#:%7E:text=Cocoa%20is%20rich%20in%20polyphenols%20particularly%20in%20catechins,and%20cocoa%20powder%20have%20been%20published%20only%20recently.">polyphenols</a> – chemical compounds present in plants – found in foodstuffs like chocolate may also lead to <a href="https://pubmed.ncbi.nlm.nih.gov/29993262/">improved control of blood sugars</a>. <h2>Chocolate toxicity</h2> As much as chocolate might be considered a medicine for some, it can be a poison for others. It’s well documented that the ingestion of caffeine and theobromine is highly toxic for domestic animals. Dogs are <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4801869/">particularly affected</a> because of their often voracious appetites and generally unfussy natures. The culprit is often dark chocolate, which can provoke symptoms of agitation, rigid muscles and even seizures. In certain cases, if ingested in high enough quantities, it can lead to comas and abnormal, even fatal heart rhythms. Some of the compounds found in chocolate have also been found to have potentially negative effects in humans. Chocolate is a source of oxalate which, along with calcium, is one of the main components of <a href="https://pubmed.ncbi.nlm.nih.gov/20301742/">kidney stones</a>. Some clinical groups have advised against consuming oxalate rich foods, such as spinach and rhubarb – and chocolate, for those who suffer from recurrent kidney stones. So, what should all this mean for our chocolate consumption habits? Science points in the direction of chocolate that has as high a cocoa solid content as possible, and the minimum of extras. The potentially harmful effects of chocolate are more related to fat and sugar, and may counteract any possible benefits. A daily dose of 20g-30g of plain or dark chocolate with cocoa solids above 70% – rather than milk chocolate, which contains fewer solids and white chocolate, which contains none – could lead to a greater health benefit, as well as a greater high. But whatever chocolate you go for, please don’t share it with the dog.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/226759/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/dan-baumgardt-1451396">Dan Baumgardt</a>, Senior Lecturer, School of Physiology, Pharmacology and Neuroscience, <a href="https://theconversation.com/institutions/university-of-bristol-1211">University of Bristol</a> Image credits: Getty Images This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/eating-some-chocolate-really-might-be-good-for-you-heres-what-the-research-says-226759">original article</a>.

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New details on man killed by snake at childcare centre

A childcare centre in Queensland, where father-of-three suffered a <a href="https://www.oversixty.com.au/health/caring/dad-dies-after-being-bitten-by-deadly-snake-in-child-care-centre" target="_blank" rel="noopener">fatal snake bite</a>, is under investigation by workplace safety officials. Jerromy Brookes, 47, was bitten multiple times on his arm while attempting to remove a snake from the premises on Tuesday afternoon. He was not a qualified snake catcher, and tragically passed away in Townsville Hospital after going into cardiac arrest at his home in Deeragun. “Workplace Health and Safety Queensland (WHSQ) is investigating an incident that occurred at a business in Townsville,” a spokesperson told 7News. “As this is a current investigation, WHSQ is not able to provide further information at this time.” WHSQ has the power to prosecute allegations of workplace safety breaches. Brooke is survived by his wife and three children. His wife was the person who called emergency services and provided first aid when Brookes began showing symptoms at home. A family friend has paid tribute to the fallen father saying: “Jerromy was helping remove a snake from another childcare centre in Townsville when the incident occurred." “He was doing his very best to keep the children safe.” It was believed that Brookes was trying to remove an eastern brown snake, one of the deadliest in the world, however the species has not been officially confirmed. Police are reportedly not investigating the incident as a criminal matter, but are working to provide a report for the coroner. Images: Facebook

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Dad dies after being bitten by deadly snake in child care centre

A beloved father has passed away after reportedly trying to remove an eastern brown snake from a child care centre in North Queensland. Jeremy Brookes attended the child care centre on Tuesday afternoon after one of his relatives reportedly called him over to remove the snake, according to The Courier Mail. Brookes was not a qualified snake handler and was bitten multiple times on his hand and arm. According to Queensland Ambulance Service acting district director Paula Marten, Brookes then managed to drive to his Deeragun home but he soon went into cardiac arrest. HIs wife performed CPR until paramedics arrived and he was rushed to hospital, but unfortunately could not be saved. “(He) was found to be in cardiac arrest by our crews,” Marten said. “The call was made by the patient’s wife, who then commenced CPR as the patient went into cardiac arrest. “The information provided to us was that the gentleman had been bitten in a different location and attended back to his residence, where his wife has immobilised his arm and wrapped it, when the onset of the symptoms occurred.” She added that snake bites were common in North Queensland and they were rarely fatal, but advised that if "you’re not aware of snakes, treat them as if they are venomous." “It’s really important that you stay calm and keep the person calm. “Apply basic first aid, which would be immobilisation and using compression bandages, and contact triple-0. “If you are unsure about what first aid measures to take, call triple-0, and they will walk you through what you need to do for the patient.” Eastern Brown Snakes are one of the most deadly snakes in the world, with the second most toxic venom. They can be found across the east of Australia including the Northern Territory, Queensland, South Australia, Victoria, NSW and the ACT. Brookes is believed to be the first person to have died from a snake bite in Australia this year. Last year, two people died from suspected eastern brown snake bites in Australia. Images: Facebook/ news.com.au

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Running or yoga can help beat depression, research shows – even if exercise is the last thing you feel like

<a href="https://theconversation.com/profiles/michael-noetel-147460">Michael Noetel</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> At least <a href="https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2021.665019/full">one in ten people</a> have depression at some point in their lives, with some estimates <a href="https://www.sciencedirect.com/science/article/pii/S0749379720301793">closer to one in four</a>. It’s one of the worst things for someone’s wellbeing – worse than <a href="https://www.happinessresearchinstitute.com/_files/ugd/928487_4a99b6e23f014f85b38495b7ab1ac24b.pdf">debt, divorce or diabetes</a>. <a href="https://theconversation.com/why-are-so-many-australians-taking-antidepressants-221857">One in seven</a> Australians take antidepressants. Psychologists are in <a href="https://theconversation.com/we-cant-solve-australias-mental-health-emergency-if-we-dont-train-enough-psychologists-here-are-5-fixes-190135">high demand</a>. Still, only <a href="http://dx.doi.org/10.1371/journal.pmed.1003901">half</a> of people with depression in high-income countries get treatment. Our <a href="https://www.bmj.com/content/384/bmj-2023-075847">new research</a> shows that exercise should be considered alongside therapy and antidepressants. It can be just as impactful in treating depression as therapy, but it matters what type of exercise you do and how you do it. <h2>Walk, run, lift, or dance away depression</h2> We found 218 randomised trials on exercise for depression, with 14,170 participants. We analysed them using a method called a network meta-analysis. This allowed us to see how different types of exercise compared, instead of lumping all types together. We found walking, running, strength training, yoga and mixed aerobic exercise were about as effective as <a href="https://theconversation.com/explainer-what-is-cognitive-behaviour-therapy-37351">cognitive behaviour therapy</a> – one of the <a href="https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2018.00004/full">gold-standard treatments</a> for depression. The effects of dancing were also powerful. However, this came from analysing just five studies, mostly involving young women. Other exercise types had more evidence to back them. Walking, running, strength training, yoga and mixed aerobic exercise seemed more effective than antidepressant medication alone, and were about as effective as exercise alongside antidepressants. But of these exercises, people were most likely to stick with strength training and yoga. <iframe id="cZaWb" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/cZaWb/2/" width="100%" height="400px" frameborder="0"></iframe> Antidepressants certainly help <a href="https://www.thelancet.com/article/S0140-6736(17)32802-7/fulltext">some people</a>. And of course, anyone getting treatment for depression should talk to their doctor <a href="https://australia.cochrane.org/news/new-cochrane-review-explores-latest-evidence-approaches-stopping-long-term-antidepressants">before changing</a> what they are doing. Still, our evidence shows that if you have depression, you should get a psychologist and an exercise plan, whether or not you’re taking antidepressants. <h2>Join a program and go hard (with support)</h2> Before we analysed the data, we thought people with depression might need to “ease into it” with generic advice, <a href="https://www.who.int/initiatives/behealthy/physical-activity">such as</a> “some physical activity is better than doing none.” But we found it was far better to have a clear program that aimed to push you, at least a little. Programs with clear structure worked better, compared with those that gave people lots of freedom. Exercising by yourself might also make it hard to set the bar at the right level, given low self-esteem is a symptom of depression. We also found it didn’t matter how much people exercised, in terms of sessions or minutes a week. It also didn’t really matter how long the exercise program lasted. What mattered was the intensity of the exercise: the higher the intensity, the better the results. <h2>Yes, it’s hard to keep motivated</h2> We should exercise caution in interpreting the findings. Unlike drug trials, participants in exercise trials know which “treatment” they’ve been randomised to receive, so this may skew the results. Many people with depression have physical, psychological or social barriers to participating in formal exercise programs. And getting support to exercise isn’t free. We also still don’t know the best way to stay motivated to exercise, which can be even harder if you have depression. Our study tried to find out whether things like setting exercise goals helped, but we couldn’t get a clear result. Other reviews found it’s important to have a <a href="https://pubmed.ncbi.nlm.nih.gov/31923898/">clear action plan</a> (for example, putting exercise in your calendar) and to <a href="https://pubmed.ncbi.nlm.nih.gov/19916637/">track your progress</a> (for example, using an app or smartwatch). But predicting which of these interventions work is notoriously difficult. A <a href="https://www.nature.com/articles/s41586-021-04128-4">2021 mega-study</a> of more than 60,000 gym-goers <a href="https://www.nature.com/articles/s41586-021-04128-4/figures/1">found</a> experts struggled to predict which strategies might get people into the gym more often. Even making workouts fun didn’t seem to motivate people. However, listening to audiobooks while exercising helped a lot, which no experts predicted. Still, we can be confident that people benefit from personalised support and accountability. The support helps overcome the hurdles they’re sure to hit. The accountability keeps people going even when their brains are telling them to avoid it. So, when starting out, it seems wise to avoid going it alone. Instead: <ul> <li> join a fitness group or yoga studio </li> <li> get a trainer or an exercise physiologist </li> <li> ask a friend or family member to go for a walk with you. </li> </ul> Taking a few steps towards getting that support makes it more likely you’ll keep exercising. <h2>Let’s make this official</h2> Some countries see exercise as a backup plan for treating depression. For example, the American Psychological Association only <a href="https://www.apa.org/depression-guideline/">conditionally recommends</a> exercise as a “complementary and alternative treatment” when “psychotherapy or pharmacotherapy is either ineffective or unacceptable”. Based on our research, this recommendation is withholding a potent treatment from many people who need it. In contrast, The Royal Australian and New Zealand College of Psychiatrists <a href="https://www.ranzcp.org/getmedia/a4678cf4-91f5-4746-99d4-03dc7379ae51/mood-disorders-clinical-practice-guideline-2020.pdf">recommends</a> vigorous aerobic activity at least two to three times a week for all people with depression. Given how common depression is, and the number failing to receive care, other countries should follow suit and recommend exercise alongside front-line treatments for depression. I would like to acknowledge my colleagues Taren Sanders, Chris Lonsdale and the rest of the coauthors of the paper on which this article is based. If this article has raised issues for you, or if you’re concerned about someone you know, call Lifeline on 13 11 14.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/223441/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/michael-noetel-147460">Michael Noetel</a>, Senior Lecturer in Psychology, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/running-or-yoga-can-help-beat-depression-research-shows-even-if-exercise-is-the-last-thing-you-feel-like-223441">original article</a>.

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