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Traveller divides opinion on how early you should arrive at the airport

A plane passenger has shocked even the most organised travellers after admitting that he gets to the airport six hours before his flight departs. Self-described anxious traveller Tim Murray slammed those who have a laxed attitude to an airport arrival time, boldly stating it's their own fault if they miss their flight. “It's not my fault you're late to your flight, so if you're behind me in the security line being like: ‘I gotta get past you I'm late’ you need to manage your time better”' he declared in a short clip posted to TikTok. “I get to the airport six-and-a-half hours before my flight,” he stated, admitting his “extreme anxiety” does play a role in getting there early. “And I wanna sit here and vibe at the airport Chili's with a waitress named Debra who has the most amazing smoker's voice you've ever heard and stories that will last six-and-a-half hours,” he joked. In a comment, Tim admitted that he may have over-exaggerated the six hours, but still saying he gets to the airport several hours early. While Tim seemed smug in bragging about his early arrival, many users pointed out that there are external factors that play into people's travel plans. “People need to remember it's not always the person's fault. If my plane is late that could cause me to miss my connection, no matter how early I was. This has happened to me a few times,” one person pointed out. “Have mercy on us international flyers who need to do immigration baggage claim and run to connecting flight after our first flight was delayed,” another complained. “Dude some people are connections because their flight was late, or stuck in a long customs lines… so many other reasons than being just late,” they pointed out. Image credits: TikTok / Shutterstock

Travel Trouble

Retiring early can be bad for the brain

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/plamen-v-nikolov-1112610">Plamen V Nikolov</a>, <a href="https://theconversation.com/institutions/binghamton-university-state-university-of-new-york-2252">Binghamton University, State University of New York</a> The <a href="https://theconversation.com/us/topics/research-brief-83231">Research Brief</a> is a short take about interesting academic work. <h2>The big idea</h2> People who retire early suffer from accelerated cognitive decline and may even encounter early onset of dementia, according to a I conducted with my doctoral student <a href="https://sites.google.com/binghamton.edu/alan-adelman/home">Alan Adelman</a>. To establish that finding, we examined the effects of a rural pension program China introduced in 2009 that provided people who participated with a stable income if they stopped working after the official retirement age of 60. We found that people who participated in the program and retired within one or two years experienced a cognitive decline equivalent to a drop in general intelligence of 1.7% relative to the general population. This drop is equivalent to about three IQ points and could make it harder for someone to <a href="https://doi.org/10.1017/S0033291700008412">adhere to a medication schedule</a> or <a href="https://doi.org/10.1111/j.1475-%205890.2007.00052.x">conduct financial planning</a>. The largest negative effect was in what is called “delayed recall,” which measures a person’s ability to remember something mentioned several minutes ago. Neurological research <a href="https://doi.org/10.1001/archneur.1991.00530150046016">links problems in this area to an early onset of dementia</a>. <h2>Why it matters</h2> Cognitive decline refers to when a person has trouble remembering, learning new things, concentrating or making decisions that affect their everyday life. Although some cognitive decline appears to be an inevitable byproduct of aging, faster decline can have profound adverse consequences on one’s life. Better understanding of the causes of this has powerful financial consequences. Cognitive skills – the mental processes of gathering and processing information to solve problems, adapt to situations and learn from experiences – are crucial for decision-making. They influence an individual’s ability to process information and <a href="https://www.jstor.org/stable/1818642">are connected to higher earnings</a> and a <a href="https://www.doi.org/10.1257/jep.25.1.159">better quality of life</a>. Retiring early and working less or not at all can generate large benefits, such as reduced stress, better diets and more sleep. But as we found, it also has unintended adverse effects, like fewer social activities and less time spent challenging the mind, that far outweighed the positives. While retirement schemes like the 401(k) and similar programs in other countries <a href="https://www.doi.org/10.1023/B:PUCH.0000035859.20258.e0">are typically introduced to ensure the welfare of aging adults</a>, our research suggests they need to be designed carefully to avoid unintended and significant adverse consequences. When people consider retirement, they should weigh the benefits with the significant downsides of a sudden lack of mental activity. A good way to ameliorate these effects is to stay engaged in social activities and continue to use your brains in the same way you did when you were working. In short, we show that if you rest, you rust. <h2>What still isn’t known</h2> Because we are using data and a program in China, the mechanisms of how retirement induces cognitive decline could be context-specific and may not necessarily apply to people in other countries. For example, cultural differences or other policies that can provide support to individuals in old age can buffer some of the negative effects that we see in rural China due to the increase in social isolation and reduced mental activities. Therefore, we can not definitively say that the findings will extrapolate to other countries. We are looking for data from other countries’ retirement programs, such as India’s, to see if the effects are similar or how they are different. <h2>How I do my research</h2> A big focus of the <a href="https://scholar.harvard.edu/pnikolov/my-research-group-1">economics research lab</a> I run is to <a href="http://www.nber.org/%7Enikolovp/research.html">better understand</a> the causes and consequences of changes in what economists call <a href="https://www.britannica.com/topic/human-capital">“human capital”</a> – especially cognitive skills – in the context of developing countries. Our lab’s mission is to generate research to inform economic policies and empower individuals in low-income countries to rise out of poverty. One of the main ways we do this is through the use of randomized controlled trials to measure the impact of a particular intervention, such as retiring early or access to microcredit, on education outcomes, productivity and health decisions. <a href="https://theconversation.com/profiles/plamen-v-nikolov-1112610">Plamen V Nikolov</a>, Assistant Professor of Economics, <a href="https://theconversation.com/institutions/binghamton-university-state-university-of-new-york-2252">Binghamton University, State University of New 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/retiring-early-can-be-bad-for-the-brain-145603">original article</a>. </div>

Mind

Breaking the silence on prostate cancer: man’s family legacy highlights importance of early detection

James Murray, 55, an architect from Melbourne, always knew he was living with a genetic "time bomb." A fifth-generation prostate cancer sufferer, his family’s battle with the disease spans over 170 years. From his great-great-grandfather, who chronicled his symptoms in 1847, to his uncles and father who also faced the disease, prostate cancer has been a grim constant in his family. “My family has what's been called a ‘spectacular history’ with prostate cancer,” James reflects. “But that’s not the kind of thing you want to hear. My great-great-grandfather had it, though they couldn’t test for it back then. My grandfather died from it, my father got it, and both of his brothers had it as well. It’s been a constant in our family for generations.” James' great-great-grandfather, Robert William Felton Lathrop Murray, a soldier and the founder of the Hobart Town Gazette, documented his battle with the disease long before modern medicine could provide a diagnosis. Since then, generation after generation of Murrays has grappled with the same fate. For James, however, early detection was key. Diagnosed in February 2022, he underwent surgery just a few months later in May, removing what doctors described as an aggressive form of the disease. But his story, unlike his ancestors, had a different ending. “In a way, we’ve been cursed by prostate cancer," explains James. "But it’s also been a blessing because it made us all hyper-aware of the importance of early detection. My dad was incredibly diligent, and that saved his life. He made sure I was on top of my PSA testing from my mid-40s, and that’s how we caught it early for me.” Prostate-Specific Antigen (PSA) testing and early detection are now recognised as crucial, particularly for men with a family history of prostate cancer. Yet, dangerous myths surrounding prostate cancer testing continue to cost lives, warns Associate Professor Weranja Ranasinghe, Deputy Leader of the Urological Society of Australia and New Zealand’s (USANZ) GU-Oncology Special Advisory Group. “Many men believe that they need to have urinary symptoms to be concerned about prostate cancer,” explains Ranasinghe. “The reality is that most prostate cancers develop without any symptoms at all. Urinary symptoms are not reliable – most of these symptoms are caused by non-cancerous enlargement of the prostate but advanced cancer can also give you urinary symptoms. So it is important to get checked.” An even greater barrier, however, is the outdated belief that prostate cancer screening requires an invasive rectal exam. Ranasinghe stresses that this is no longer the case: “A simple PSA blood test, combined with advanced imaging like MRI, is now the standard approach. Many men are avoiding tests due to this outdated fear, but in the GP setting, a rectal exam is currently not required for detecting prostate cancer." With over 26,000 Australian men expected to be diagnosed with prostate cancer this year, the Urological Society of Australia and New Zealand (USANZ) is raising awareness during Prostate Cancer Awareness Month about the importance of early testing and debunking these misconceptions. Ranasinghe also points out that men with a strong family history should be particularly vigilant. “Men with female relatives who have had breast or ovarian cancer are also at an increased risk of prostate cancer due to the same genetic mutations. So we recommend that men with a strong family history get a PSA test at the age of 40, which is earlier than the recommended age.” For James Murray, the decision to undergo surgery quickly after his diagnosis proved life-saving. “When my PSA levels started rising in February 2022, I wasn’t shocked," he recalls. "I had always known this day would come. It wasn’t something I feared, but more something I was prepared for. I told myself, ‘Okay, it’s here, let’s deal with it,’ and I just focused on getting through the surgery as quickly as possible.” James feels fortunate compared to his uncles, whose diagnoses came much later in life, leading to more severe outcomes. His surgery went well, and he's had a quick recovery, returning to work and feeling grateful that they caught it early. That's why James is advocating for early PSA testing, particularly for men with a family history of prostate cancer. He plans to ensure his 19-year-old son is aware of the need for testing in the future. "We often see men wait until a friend or relative is diagnosed before thinking about getting a prostate cancer PSA test done," says Ranasinghe. "This reactive approach is dangerous. Men need to be proactive and take ownership of their prostate health and talk to their GPs about this, just like they would with cholesterol or other routine health checks." As prostate cancer awareness grows, James hopes his story will encourage others to get tested. It’s something no one wants to face, but the sooner you catch it, the better chance you have. For more information on prostate cancer screening and to find a urologist, visit the Urological Society of Australia and New Zealand (USANZ) at <a href="https://www.usanz.org.au/" target="_blank" rel="noopener">www.usanz.org.au</a>. Images: Supplied

Caring

New device could help GPs detect Alzheimer's in minutes

GPs could soon be able to screen their patients for Alzheimer's Disease in a matter of minutes, using a handheld device the size of a credit card. The first-of-a-kind finger-prick blood test was developed by engineers at Melbourne's Monash University and it can detect the hallmark protein biomarkers of early Alzheimer's Disease within minutes. This could become an important tool for doctors in diagnosing patients before the symptoms progress. In Australia alone there are around 420,000 people living with dementia, with that number set to double by 2054. Associate Professor Sudha Mokkapati, from Monash Materials Science and Engineering, helped lead the development of the testing device. "Detecting very early disease in large populations could dramatically change the trajectory of this burdening disease for many patients, and shave millions off associated healthcare costs," Mokkapati said. "We've completed testing that shows the technology is highly advanced by design and capable of detecting ultra-low levels of several disease biomarkers in blood." The device also has the potential to remove the need for laboratory-based pathology tests, making diagnoses faster and cheaper. The university is currently seeking funding to complete the next stage - clinical validation, which will help bring the device one step closer to reality. "Most patients with neurodegenerative disease are typically diagnosed at advanced stages. Sadly, treatments targeting late-onset disease provide limited therapeutic benefit," Associate Professor Matthew Pase, at Monash's School of Psychological Sciences, said. "Earlier screening could change the outlook for many patients diagnosed with cognitive impairment, increasing the chance of halting or slowing symptom development and the rapid progression of the disease." Image: Monash University/ Nine

Caring

Ovarian cancer is hard to detect. Focusing on these 4 symptoms can help with diagnosis

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/jenny-doust-12412">Jenny Doust</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> Ovarian cancers are often found when they are already advanced and hard to treat. Researchers <a href="https://ascopubs.org/doi/10.1200/JCO.2010.32.2164">have long believed</a> this was because women first experienced symptoms when ovarian cancer was already well-established. Symptoms can also be <a href="https://cancer.org.au/cancer-information/causes-and-prevention/early-detection-and-screening/early-detection-of-ovarian-cancer">hard to identify</a> as they’re vague and similar to other conditions. But <a href="https://ijgc.bmj.com/content/early/2024/07/24/ijgc-2024-005371">a new study</a> shows promising signs ovarian cancer can be detected in its early stages. The study targeted women with four specific symptoms – bloating, abdominal pain, needing to pee frequently, and feeling full quickly – and put them on a fast track to see a specialist. As a result, even the most aggressive forms of ovarian cancer could be detected in their early stages. So what did the study find? And what could it mean for detecting – and treating – ovarian cancer more quickly? <h2>Why is ovarian cancer hard to detect early?</h2> Ovarian cancer <a href="https://pubmed.ncbi.nlm.nih.gov/24979449/">cannot be detected</a> via cervical cancer screening (which used to be called a pap smear) and pelvic exams <a href="https://pubmed.ncbi.nlm.nih.gov/24979449/">aren’t useful</a> as a screening test. Current <a href="https://www.canceraustralia.gov.au/cancer-types/gynaecological-cancers/clinicians-hub/ovarian-cancer-guidelines">Australian guidelines</a> recommend women get tested for ovarian cancer if they have symptoms for <a href="https://www.canceraustralia.gov.au/sites/default/files/publications/assessment-symptoms-may-be-ovarian-cancer-guide-gps/pdf/ocg_assessment_of_symptoms_gp_card_0.pdf">more than a month</a>. But many of the <a href="https://cancer.org.au/cancer-information/types-of-cancer/ovarian-cancer">symptoms</a> – such as tiredness, constipation and changes in menstruation – are vague and overlap with other common illnesses. This makes early detection a challenge. But it is crucial – a woman’s <a href="https://seer.cancer.gov/statfacts/html/ovary.html">chances of surviving ovarian cancer</a> are associated with how advanced the cancer is when she is diagnosed. If the cancer is still confined to the original site with no spread, the five-year survival rate is 92%. But over half of women diagnosed with ovarian cancer first present when the cancer has <a href="https://seer.cancer.gov/statfacts/html/ovary.html">already metastatised</a>, meaning it has spread to other parts of the body. If the cancer has spread to nearby lymph nodes, the survival rate is reduced to 72%. If the cancer has already metastasised and spread to distant sites at the time of diagnosis, the rate is only 31%. There are mixed findings on whether detecting ovarian cancer earlier leads to better survival rates. For example, a trial in the UK that screened more than 200,000 women <a href="https://pubmed.ncbi.nlm.nih.gov/37183782/">failed to reduce deaths</a>. That study screened the general public, rather than relying on self-reported symptoms. The new study suggests asking women to look for specific symptoms can lead to earlier diagnosis, meaning treatment can start more quickly. <h2>What did the new study look at?</h2> Between June 2015 and July 2022, the researchers recruited 2,596 women aged between 16 and 90 from 24 hospitals across the UK. They were asked to monitor for these four symptoms: <ul> <li>persistent abdominal distension (women often refer to this as bloating)</li> <li>feeling full shortly after starting to eat and/or loss of appetite</li> <li>pelvic or abdominal pain (which can feel like indigestion)</li> <li>needing to urinate urgently or more often.</li> </ul> Women who reported at least one of four symptoms persistently or frequently were put on a <a href="https://pubmed.ncbi.nlm.nih.gov/22479719/">fast-track pathway</a>. That means they were sent to see a gynaecologist within two weeks. The fast track pathway has been used in the UK since 2011, but is not specifically part of Australia’s guidelines. Some 1,741 participants were put on this fast track. First, they did a blood test that measured the cancer antigen 125 (CA125). If a woman’s CA125 level was abnormal, she was sent to do a internal vaginal ultrasound. <h2>What did they find?</h2> The study indicates this process is better at detecting ovarian cancer than general screening of people who don’t have symptoms. Some 12% of women on the fast-track pathway were diagnosed with some kind of ovarian cancer. A total of 6.8% of fast-tracked patients were diagnosed with high-grade serous ovarian cancer. It is the most aggressive form of cancer and responsible for 90% of ovarian cancer deaths. Out of those women with the most aggressive form, one in four were diagnosed when the cancer was still in its early stages. That is important because it allowed treatment of the most lethal cancer before it had spread significantly through the body. There were some promising signs in treating those with this aggressive form. The majority (95%) had surgery and three quarters (77%) had chemotherapy. Complete cytoreduction – meaning all of the cancer appears to have been removed – was achieved in six women out of ten (61%). It’s a promising sign that there may be ways to “catch” and target ovarian cancer before it is well-established in the body. <h2>What does this mean for detection?</h2> The study’s findings suggest this method of early testing and referral for the symptoms leads to earlier detection of ovarian cancer. This may also improve outcomes, although the study did not track survival rates. It also points to the importance of public awareness about symptoms. Clinicians should be able to recognise all of the ways ovarian cancer can present, including vague symptoms like general fatigue. But empowering members of the general public to recognise a narrower set of four symptoms can help trigger testing, detection and treatment of ovarian cancer earlier than we thought. This could also save GPs advising every woman who has general tiredness or constipation to undergo an ovarian cancer test, making testing and treatment more targeted and efficient. Many women remain <a href="https://www.google.com/url?q=https://pubmed.ncbi.nlm.nih.gov/24612526/&sa=D&source=docs&ust=1723610085733806&usg=AOvVaw3J5o5DwRFiDzFaQcD7VTQn">unaware of the symptoms</a> of ovarian cancer. This study shows recognising them may help early detection and treatment.<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/236775/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/jenny-doust-12412">Jenny Doust</a>, Clinical Professorial Research Fellow, Australian Women and Girls' Health Research Centre, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</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/ovarian-cancer-is-hard-to-detect-focusing-on-these-4-symptoms-can-help-with-diagnosis-236775">original article</a>. </div>

Body

Revolutionary diabetes detection via smartphone: A game-changer in healthcare

In a groundbreaking advancement, scientists from <a href="https://www.klick.com/" target="_blank" rel="noopener">Klick Labs</a> have discovered a method that could revolutionise diabetes detection – using just a 10-second smartphone voice recording. No more travelling to clinics or waiting anxiously for blood test results. This new approach promises immediate, on-the-spot results, potentially transforming how we diagnose type 2 diabetes. The study, published in <a href="https://www.mcpdigitalhealth.org/article/S2949-7612(23)00073-1/fulltext" target="_blank" rel="noopener">Mayo Clinic Proceedings: Digital Health</a>, involved 267 participants, including 192 non-diabetic and 75 type 2 diabetic individuals. Each participant recorded a specific phrase on their smartphone multiple times a day over two weeks, resulting in 18,465 recordings. These recordings, lasting between six and 10 seconds each, were meticulously analysed for 14 acoustic features, such as pitch and intensity. Remarkably, these features exhibited consistent differences between diabetic and non-diabetic individuals, differences too subtle for the human ear but detectable by sophisticated signal processing software. Building on this discovery, the scientists developed an AI-based program to analyse the voice recordings alongside patient data like age, sex, height and weight. The results were impressive: the program accurately identified type 2 diabetes in women 89% of the time and in men 86% of the time. These figures are competitive with traditional methods, where fasting blood glucose tests show 85% accuracy and other methods, like glycated haemoglobin and oral glucose tolerance tests, range between 91% and 92%. "This technology has the potential to remove barriers entirely," said Jaycee Kaufman, a research scientist at Klick Labs and the study's lead author. Traditional diabetes detection methods can be time-consuming, costly and inconvenient, but voice technology could change all that, providing a faster, more accessible solution. Looking ahead, the team plans to conduct further tests on a larger, more diverse population to refine and validate this innovative approach. If successful, this could mark a significant leap forward in diabetes management and overall healthcare, making early detection simpler and more accessible than ever before. Stay tuned as this exciting development unfolds, potentially bringing us closer to a future where managing and detecting diabetes is as simple as speaking into your smartphone. Image: Shutterstock

Body

Former detective shares new theory on Samantha Murphy's murder

After several weeks of no leads, police were happy to share their breakthrough on the case of Samantha Murphy's murder after they located her mobile phone. During a "<a href="https://oversixty.com.au/finance/legal/major-update-in-search-for-samantha-murphy-s-body" target="_blank" rel="noopener">targeted search</a>", officers found Ms Murphy's iPhone on the bank of a dam, in what is one of the most significant developments in the case as police continue to search for Ms Murphy’s missing body. However, retired detective Charlie Bezzina has urged police and members of the public that just because the phone has been located, it could still be some time until Ms Murphy's body is found. Bezzina suggested that the phone had been planted in the dam and then concealed Ms Murphy’s body elsewhere in a bid to mislead police. Mr Bezzina, a veteran cop with decades of experience, said he found it perplexing that police could locate the submerged phone without prior intelligence. He speculated that authorities might have had some degree of tracking information while the phone was still active, hinting that the police may know more than they’re disclosing. Mr Bezzina went on to suspect that someone may have been in possession of Ms Murphy's phone for some time before discarding it. “With phones it’s amazing. There’s a lot the carrier, or carriers, don’t tell us about the capabilities of a phone,” Mr Bezzina said via Herald Sun. “When you’ve got a phone that’s off, people ask the question, ‘is it still transmitting’, and ‘if the battery goes flat does it still transmit?’ Some do and some don’t.” Mr Bezzina said it’s not uncommon for offenders to keep items for a while before discarding them, particularly mobile phones. “We don’t know when that phone was dumped in there, it is not unusual for offenders to keep items for a while, especially mobile phones … for all we know that might have been discarded just weeks ago,” he said. “Often offenders go back and do things, keep the phone somewhere or with them, and then dump it later on." “And that’s where they’ll get any evidence, if it’s been pinging … people can think ‘I’ll drive 10 or 15 kilometres away and I’ll dump the phone there to really put them off the scent, if the phone is in some way traceable’ … so not unusual at all for it to be dumped in a separate location (to the body).” Ms Murphy was last seen on February 4th, and although 22-year-old Patrick Orren Stephenson has been charged with her murder, her body has yet to be found. Image credits: Nine News

Legal

REVIEW: Super-intelligent, dog-detecting robot lawn mower

I was recently invited to an onsite demonstration of a brand new line of lawn mowers that were pitched as being not just a lawn mower, but a furry-friend dodging, grass-grooming marvel of modern technology. According to the specs, the <a href="https://au.worx.com/vision-technology/" target="_blank" rel="noopener">WORX LANDROID® Vision</a> is the world’s first advanced AI, "unbox & mow" robot lawn mower. "No wire. No satellite. No beacons. No time between unboxing and mowing." Using a combination of HRD camera, the latest AI smarts and a deeply trained neural network to identify grass to mow and obstacles to avoid, it features the innovative "Cut-to-Edge" function, multi-zone management and adaptive auto-scheduling. Plus an optional LED headlight safe night-mowing (apparently, unlike conventional robots, Vision sees nocturnal animals and stays away from them). But the real test for me was always going to be: how would something like the Vision get along with my dog, Rosie? I was offered the chance to try out one of the mowers for a few weeks, and so I jumped at it. But let's talk about Rosie for a moment. Now, this little ball of fur thinks she's the queen of the backyard. She zooms around like a tiny tornado, and honestly I think she believes the grass is her personal chew toy. So, when I introduced the LANDROID into the mix, I was half expecting chaos and half hoping for a miracle. Lo and behold, this mower is not just a lawn whisperer; it's a puppy ninja. The WORX LANDROID has some sort of superpower in its sensors, allowing it to detect my pup's presence and skilfully manoeuvre around her. It was like watching a graceful dance between technology and canine curiosity. For the duration of the test, Rosie basically appointed herself as the official supervisor of lawn maintenance, proudly watching from a safe distance (and sometimes not so safe) as the LANDROID worked its magic. But let's not forget about the real star of the show: the lawn itself. The LANDROID doesn't just dodge around obstacles; it trims with precision, leaving my yard looking like a freshly coiffed celebrity. It's like having a personal stylist for my grass – one that never sleeps. And the best part? I get to sit back, relax and sip my lemonade while the LANDROID does all the heavy lifting (or should I say, mowing). It's like having a reliable little garden gnome, except this one runs on electricity and has impeccable dodging skills. So if you want a lawn mower that's not only efficient but also entertaining, look no further than the <a href="https://au.worx.com/vision-technology/" target="_blank" rel="noopener">WORX LANDROID Vision</a>. It's the perfect blend of technology, pet sensitivity and grass-grooming prowess. Plus, it's the only mower I know that can outmanoeuvre a puppy – and that is definitely something to bark about. Images: Alex Cracknell

Home & Garden

Detection dogs to lead search for Samantha Murphy's body

Detectives have launched a <a href="https://www.oversixty.com.au/finance/legal/new-update-in-search-for-samantha-murphy-s-body" target="_blank" rel="noopener">fresh search</a> for Samantha Murphy's body, but after spending eight hours on Wednesday trying to locate her remains in Buninyong to no avail, they are trying a different approach. Technology detection dogs will assist detectives in their search on Thursday, at a new site that police have not specified, with the intention of trying to track her phone or watch. “We’ll be going to a different location but we will also use assistance from the Australian Federal Police today in technical detection dogs,” Chief Commissioner Shane Patton told ABC Radio. “We don’t have the capacity — we are trying to get that capability — to run a dog that can detect a SIM from a mobile phone and that type of thing. “We still haven’t recovered her phone and her watch. We’ll use all those specialist skills.” He also added that the "intelligence" they received, which sparked this fresh search did not come from interviews with accused murderer, Patrick Orren Stephenson. “We are doing everything we can to try and find Samantha Murphy’s body. We weren’t successful yesterday but we will continue to do everything we can,” Chief Commissioner Patton said. In another statement, Victoria police also said that the search on Thursday is not a "full-scale targeted search". "This is not a full-scale targeted search as took place yesterday in Buninyong with a range of specialist resources," they said. "Detectives from the Missing Persons squad have been based in Ballarat for over a month and regularly undertake a range of enquiries and small scale searches as part of the current investigation." The accused murderer, who is the <a href="https://www.oversixty.com.au/finance/legal/everything-we-know-about-samantha-murphy-s-accused-killer" target="_blank" rel="noopener">son of former AFL player</a> Orren Stephenson, was arrested and charged on March 6, and was refused bail at Ballarat Magistrate’s Court. He will next face court on August 8. Images: Nine News

Legal

"Stuff youse": Pensioner who's never owned a phone fights mobile detection camera fine

A pensioner from New South Wales has disputed a fine he was issued for using his phone while driving, despite never owning a phone. Frank Singh, 77, was captured on a mobile phone detection camera while driving on the Pacific Motorway last September, and was issued a fine for $362. Mr Singh has refused to pay the fine, claiming that he was holding his wallet when the image was captured. He also claims to have never owned a mobile phone or a computer in his life, wondering how the camera made such a mistake. The senior man decided to appeal and take Revenue NSW to court, despite the risk of paying thousands in legal fees if he lost the case. "Looks like I'm guilty on it, but I'm not," he told A Current Affair. "I thought, what the bloody hell is this all about, I don't own a mobile phone. I've never used a mobile phone. What a load of s***." When questioned what the item could be, he said, "I think it could be my wallet." While Mr Singh admitted he can't specifically remember what he was doing at the time, he believes he was possibly placing his wallet on the passenger seat after paying for fuel. Unfortunately, the review of the fine was rejected and Frank was ordered to pay the $362, but he has not given up. "Then I thought stuff youse, I'm not guilty, I don't own a bloody phone," he said. While preparing to appeal the fine once more, Revenue NSW revoked the fine after issuing a letter to Mr Singh saying he would not be required in court following an investigation by the government body. "We have decided to cancel the fine," the letter read. "You little bloody beauty, how good's that," Mr Singh said on hearing the news, before planning to celebrate the win with a beer at his local pub. Image credits: A Current Affair

Legal

Early indicators of dementia: 5 behaviour changes to look for after age 50

<a href="https://theconversation.com/profiles/daniella-vellone-1425451">Daniella Vellone</a>, <a href="https://theconversation.com/institutions/university-of-calgary-1318">University of Calgary</a> Dementia is often thought of as a memory problem, like when an elderly person asks the same questions or misplaces things. In reality, individuals with dementia will not only experience issues in other areas of cognition like learning, thinking, comprehension and judgement, but they may also experience <a href="https://www.alzint.org/u/World-Alzheimer-Report-2021.pdf">changes in behaviour</a>. It’s important to understand what dementia is and how it manifests. I didn’t imagine my grandmother’s strange behaviours were an early warning sign of a far more serious condition. She would become easily agitated if she wasn’t successful at completing tasks such as cooking or baking. She would claim to see a woman around the house even though no woman was really there. She also became distrustful of others and hid things in odd places. These behaviours persisted for some time before she eventually received a dementia diagnosis. <h2>Cognitive and behavioural impairment</h2> When cognitive and behavioural changes interfere with an individual’s functional independence, that person is considered to have dementia. However, when cognitive and behavioural changes don’t interfere with an individual’s independence, yet still negatively affect relationships and workplace performance, they are referred to as <a href="https://alzheimer.ca/sites/default/files/documents/other-dementias_mild-cognitive-impairment.pdf">mild cognitive impairment (MCI)</a> and <a href="https://doi.org/10.1186/s13195-021-00949-7">mild behavioural impairment (MBI)</a>, respectively. <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9169943/">MCI and MBI can occur together</a>, but in one-third of people who develop Alzheimer’s dementia, the behavioural symptoms come <a href="http://dx.doi.org/10.1016/j.jagp.2019.01.215">before cognitive decline</a>. Spotting these behavioural changes, which emerge in later life (ages 50 and over) and represent a persistent change from longstanding patterns, can be helpful for implementing preventive treatments before more severe symptoms arise. As a medical science PhD candidate, my research focuses on problem behaviours that arise later in life and indicate increased risk for dementia. <h2>Five behavioural signs to look for</h2> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/551071/original/file-20230928-17-jmy46j.png?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/551071/original/file-20230928-17-jmy46j.png?ixlib=rb-1.1.0&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/551071/original/file-20230928-17-jmy46j.png?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=525&fit=crop&dpr=1 600w, https://images.theconversation.com/files/551071/original/file-20230928-17-jmy46j.png?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=525&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/551071/original/file-20230928-17-jmy46j.png?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=525&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/551071/original/file-20230928-17-jmy46j.png?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=659&fit=crop&dpr=1 754w, https://images.theconversation.com/files/551071/original/file-20230928-17-jmy46j.png?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=659&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/551071/original/file-20230928-17-jmy46j.png?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=659&fit=crop&dpr=3 2262w" alt="Illustration of five behaviour changes that may indicate risk of dementia" /></a><figcaption>Spotting behavioural changes can be helpful for implementing preventive treatments before more severe symptoms arise. (Daniella Vellone)</figcaption></figure> There are <a href="https://doi.org/10.3233%2FJAD-160979">five primary behaviours</a> we can look for in friends and family who are over the age of 50 that <a href="https://doi.org/10.1186/s13024-023-00631-6">might warrant further attention</a>. <h2>1. Apathy</h2> <a href="https://doi.org/10.1002%2Ftrc2.12370">Apathy</a> is a decline in interest, motivation and drive. An apathetic person might lose interest in friends, family or activities. They may lack curiosity in topics that normally would have interested them, lose the motivation to act on their obligations or become less spontaneous and active. They may also appear to lack emotions compared to their usual selves and seem like they no longer care about anything. <h2>2. Affective dysregulation</h2> <a href="https://doi.org/10.1016/j.jad.2023.03.074">Affective dysregulation</a> includes mood or anxiety symptoms. Someone who shows affective dysregulation may develop sadness or mood instability or become more anxious or worried about routine things such as events or visits. <h2>3. Lack of impulse control</h2> <a href="https://doi.org/10.1002%2Ftrc2.12016">Impulse dyscontrol</a> is the inability to delay gratification and control behaviour or impulses. Someone who has impulse dyscontrol may become agitated, aggressive, irritable, temperamental, argumentative or easily frustrated. They may become more stubborn or rigid such that they are unwilling to see other views and are insistent on having their way. Sometimes they may develop sexually disinhibited or intrusive behaviours, exhibit repetitive behaviours or compulsions, start gambling or shoplifting, or experience difficulties regulating their consumption of substances like tobacco or alcohol. <h2>4. Social inappropriateness</h2> <a href="http://dx.doi.org/10.1017/S1041610217001260">Social inappropriateness</a> includes difficulties adhering to societal norms in interactions with others. Someone who is socially inappropriate may lose the social judgement they previously had about what to say or how to behave. They may become less concerned about how their words or actions affect others, discuss private matters openly, talk to strangers as if familiar, say rude things or lack empathy in interactions with others. <h2>5. Abnormal perceptions or thoughts</h2> <a href="https://doi.org/10.1038/s44220-023-00043-x">Abnormal perception or thought content</a> refers to strongly held beliefs and sensory experiences. Someone with abnormal perceptions or thoughts may become suspicious of other people’s intentions or think that others are planning to harm them or steal their belongings. They may also describe hearing voices or talk to imaginary people and/or act like they are seeing things that aren’t there. Before considering any of these behaviours as a sign of a more serious problem, it’s important to rule out other potential causes of behavioural change such as drugs or medications, other medical conditions or infections, interpersonal conflict or stress, or a recurrence of psychiatric symptoms associated with a previous psychiatric diagnosis. If in doubt, it may be time for a doctor’s visit. <h2>The impact of dementia</h2> Many of us know someone who has either experienced dementia or cared for someone with dementia. This isn’t surprising, given that dementia is predicted to affect <a href="https://www.ctvnews.ca/health/nearly-one-million-canadians-will-live-with-dementia-by-2030-alzheimer-society-predicts-1.6056849#:">one million Canadians by 2030</a>. While people between the ages of 20 and 40 may think that they have decades before dementia affects them, it’s important to realize that dementia isn’t an individual journey. In 2020, care partners — including family members, friends or neighbours — spent <a href="https://alzheimer.ca/sites/default/files/documents/Landmark-Study-1-Path-Forward-Alzheimer-Society-of-Canada-2022-wb.pdf">26 hours per week</a> assisting older Canadians living with dementia. This is equivalent to 235,000 full-time jobs or $7.3 billion annually. These numbers are expected to triple by 2050, so it’s important to look for ways to offset these predicted trajectories by preventing or delaying the progression of dementia. <h2>Identifying those at risk</h2> While there is currently no cure for dementia, there has been progress towards <a href="https://alzheimer.ca/en/about-dementia/dementia-treatment-options-developments">developing effective treatments</a>, which <a href="https://alzheimer.ca/en/about-dementia/do-i-have-dementia/how-get-tested-dementia-tips-individuals-families-friends/10">may work better earlier in the disease course</a>. More research is needed to understand dementia symptoms over time; for example, the online <a href="https://www.can-protect.ca/">CAN-PROTECT study</a> assesses many contributors to brain aging. Identifying those at risk for dementia by recognizing later-life changes in cognition, function as well as behaviour is a step towards not only preventing consequences of those changes, but also potentially preventing the disease or its progression.<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/213954/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/daniella-vellone-1425451">Daniella Vellone</a>, Medical Science and Imaging PhD Candidate, <a href="https://theconversation.com/institutions/university-of-calgary-1318">University of Calgary</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/early-indicators-of-dementia-5-behaviour-changes-to-look-for-after-age-50-213954">original article</a>.

Mind

"His hero narrative has massively failed": Qantas staff's brutal response to Alan Joyce's early exit

A former Qantas pilot and several current staff members have recounted the moment they found out about now former-CEO Alan Joyce's early exit from the company. Joyce was planning to retire from his CEO role in November, but shocked the nation on <a href="https://oversixty.com.au/finance/legal/alan-joyce-announces-shock-early-departure" target="_blank" rel="noopener">Tuesday</a> when he decided he would be stepping back, effective immediately. His resignation comes after 22 years in the role, as Qantas continues to face mounting pressures over unprecedented customer dissatisfaction, and a looming glass action lawsuit over cancelled flights. Upon hearing the news, past and present Qantas employees erupted in celebration. Retired Qantas pilot captain Richard de Crespigny was on board a flight on Tuesday when the news broke mid-air that Joyce was gone, sparking extraordinary celebrations. "I was on a flight from Sydney to Melbourne this morning and when I landed the cabin crew were giving each other high-fives," de Crespigny told <a href="https://9now.nine.com.au/a-current-affair/former-qantas-pilot-richard-de-crespigny-speaks-out-following-ceo-alan-joyce-resignation/18040563-db75-41c4-af7c-b5ed8af84bf6" target="_blank" rel="noopener">A Current Affair</a>. Another ground staff member said, "We're celebrating wildly, not just because he's leaving but because his hero narrative has massively failed." Mr de Crespigny, who worked for Qantas for 34 years warned the airline won't regain trust overnight just because Joyce has taken off. "It's built in teaspoons and destroyed in shovel loads," he said. "It takes incredible skill, determination and empathy to build it up; it's got to be protected." Mr de Crespigny went on to say the Qantas business restructure after the travel industry was decimated by the Covid pandemic was not good enough, and the upper management made some terrible decisions. During the pandemic, Mr Joyce locked out employees during an industrial dispute before hundreds of staff lost their jobs during the Covid-19 pandemic. "Some of them didn't come out of it well at all. They lost their jobs, they lost their houses, they lost their marriages," de Crespigny said. "The workers that held Qantas up … they really suffered greatly." "And it hasn't been a good vision to see the executive team, the CEO, continue to get bonuses at the expense of maybe baggage handlers and other people that have lost their jobs. This is not a good example of leadership." Image credits: A Current Affair

Travel Trouble

Alan Joyce announces shock early departure

Qantas CEO Alan Joyce is stepping down from his position earlier than anticipated, following a period of mounting public and regulatory pressure on the national airline. After dedicating 22 years to Qantas, with a 15-year tenure as its chief executive, Joyce's last day in office was confirmed by Qantas in a statement to the ASX. The airline has been mired in a series of negative headlines for several months, including <a href="https://www.oversixty.com.au/finance/money-banking/alan-joyce-grilled-over-cancelled-flights-and-covid-credits" target="_blank" rel="noopener">allegations of selling tickets for nonexistent flights</a>, exorbitant airfares, high cancellation rates and issues related to <a href="https://www.oversixty.com.au/finance/money-banking/alan-joyce-grilled-over-cancelled-flights-and-covid-credits" target="_blank" rel="noopener">flight credits</a>. Vanessa Hudson, the incoming leader designated to fill Joyce's shoes, will now take on the role of managing director and group chief executive, effective from Wednesday August 6. This unexpected announcement was made on Tuesday morning, with Mr. Joyce stating, "In the last few weeks, the focus on Qantas and events of the past make it clear to me that the company needs to move ahead with its renewal as a priority. "The best thing I can do under these circumstances is to bring forward my retirement and hand over to Vanessa and the new management team now, knowing they will do an excellent job. "There is a lot I am proud of over my 22 years at Qantas, including the past 15 years as CEO. There have been many ups and downs, and there is clearly much work still to be done, especially to make sure we always deliver for our customers. But I leave knowing that the company is fundamentally strong and has a bright future." Qantas Chairman Richard Goyder expressed gratitude to Joyce for his years of service and leadership but acknowledged that the transition is occurring during a challenging period for Qantas. Joyce's decision to step down came shortly after the Australian Competition and Consumer Commission initiated legal action against the airline, accusing it of selling tickets for over 8,000 flights scheduled between May and July of the previous year, even after those flights had been cancelled. Image: Getty

Legal

Jackie O reveals awful nickname she was given in her early career days

Jackie O Henderson has recalled the awful nickname she was given by upper radio management at the start of her career. The 48-year-old started her career in the media after ringing a station to win Guns N' Roses concert tickets, which led to a role answering phones for the station. Chatting candidly on The Kyle and Jackie O Show, she revealed, "I was called "Jackie the Phone Tart'." The nickname was perpetuated by an influx of hate from some radio listeners, particularly boy band fans who mistakenly believed she was sleeping with their idols when they came into the station for interviews. "I'd get all this hate [from fans] because my name was "tart" and they all thought, 'Oh, she's in there making moves, you know, being a sl*t'." "So I changed [my nickname]," added the radio host. Jackie has previously explained that while she was living on the Gold Coast as a teenager, she would call up the local Sea FM station in the early 90s in a bid to score concert tickets from radio host 'Ugly' Phil O'Neil. "I never worked at Sea FM," she said, adding that Ugly Phil took her out "on a date" after asking her to come and visit the radio station and collect the concert tickets she had won. Jackie recalled the pair had only been together for three months before he was offered a radio job in Canberra. "I moved with him because we were in a relationship," she added. The couple then relocated to Adelaide where Jackie got offered a job "on the phones" at the station where Phil hosted a show. "The rest is history," Jackie said. Image credits: Instagram

Music

This is the healthiest time to eat dinner

When should we eat dinner? Recent research highlights that the timing of our meals, particularly the last meal of the day, can significantly affect our health. The story is not merely about what we consume, but also about when we do so. The debate about dinner timing finds substantial scientific backing with a Brigham and Women’s Hospital (BWH) study published in Cell Metabolism in October 2022, suggesting that early dinners could have more health benefits than previously believed. The science of early dinner Senior author of the study, Dr Frank A. J. L. Scheer, Director of the Medical Chronobiology Programme in BWH’s Division of Sleep and Circadian Disorders, explained the study’s objective in a press release: “We wanted to test the mechanisms that may explain why late eating increases obesity risk.” The study defined an early dinner as a meal consumed three to four hours before bedtime, aligning with our body’s circadian rhythm. This time management allows the body to efficiently digest food, process nutrients, and smoothly transition into a fasting mode during sleep, facilitating essential restorative processes (and arguably better sleep, according to some experts). The benefits of an early-bird dinner The BWH study discovered stark differences in metabolic profiles of early and late diners. Early diners demonstrated lower blood glucose levels, improved fat-burning capacity, better sleep quality, and higher energy levels. Meanwhile, late dinners led to increased hunger, slower calorie burning, and elevated fat storage, posing risks for conditions like diabetes and cardiovascular disease. Further reinforcing these findings, a study published in Obesity Reviews examined the effects of energy intake distribution on weight loss. This systematic review evaluated nine randomised controlled trials and concluded that focusing on earlier energy intake resulted in significantly greater short-term weight loss. Alongside weight loss, improvements were observed in insulin resistance, fasting glucose and LDL cholesterol levels. Implications and recommendations These findings hold considerable implications for those dealing with health conditions like diabetes, thyroid issues, polycystic ovarian disease, and cardiovascular disorders. The studies spotlight the importance of early and light dinners, thus prompting a re-evaluation of our dinner schedules and meal planning. As first author Dr Nina Vujovic put it: “Does the time that we eat matter when everything else is kept consistent? And we found that eating four hours later makes a significant difference for our hunger levels, the way we burn calories after we eat, and the way we store fat.” Tailoring dinner time to fit your schedule The exact timing of dinner isn’t a one-size-fits-all scenario, as people’s routines vary widely. Nutritionist Maya Feller emphasises that our schedules – ranging from traditional nine-to-five to round-the-clock – are pivotal when considering “ideal” meal times. Therefore, finding a dinner time that seamlessly fits into your schedule is essential, rather than adhering to a strict, potentially unfeasible timetable. Dr Wendy Bazilian offers insightful tips for those whose routines may not accommodate an early dinner. She recommends consuming meals or snacks every three to five hours. This regular eating pattern can help stabilise blood sugar levels, preventing the onset of hunger pangs and energy lulls. Furthermore, it’s advantageous to leave a gap of two to three hours between your last meal and bedtime. This gap ensures your body has sufficient time for most of the digestion process – letting you get adequate rest and repair during sleep. Health benefits The takeaway from these studies is clear: an earlier dinnertime might confer multiple health benefits, from metabolic health enhancement to improved sleep quality. It’s time to reconsider not just the contents of your plate, but also the clock. As research grows, it’s becoming apparent that understanding the interplay between our eating habits, their timing, and the body’s internal clock should be an integral part of our health strategies. After all, leading a healthy lifestyle isn’t solely about counting calories but also understanding when and how to fuel our bodies. Image credits: Getty Images This article originally appeared on <a href="https://www.readersdigest.com.au/food-home-garden/this-is-the-healthiest-time-to-eat-dinner" target="_blank" rel="noopener">Reader's Digest</a>.

Food & Wine

Here’s how a new AI tool may predict early signs of Parkinson’s disease

In 1991, the world was shocked to learn actor <a href="https://www.theguardian.com/film/2023/jan/31/still-a-michael-j-fox-movie-parkinsons-back-to-the-future">Michael J. Fox</a> had been diagnosed with Parkinson’s disease. He was just 29 years old and at the height of Hollywood fame, a year after the release of the blockbuster Back to the Future III. This week, documentary <a href="https://www.imdb.com/title/tt19853258/">Still: A Michael J. Fox Movie</a> will be released. It features interviews with Fox, his friends, family and experts. Parkinson’s is a debilitating neurological disease characterised by <a href="https://www.mayoclinic.org/diseases-conditions/parkinsons-disease/symptoms-causes/syc-20376055">motor symptoms</a> including slow movement, body tremors, muscle stiffness, and reduced balance. Fox has already <a href="https://www.cbsnews.com/video/michael-j-fox-on-parkinsons-and-maintaining-optimism">broken</a> his arms, elbows, face and hand from multiple falls. It is not genetic, has no specific test and cannot be accurately diagnosed before motor symptoms appear. Its cause is still <a href="https://www.apdaparkinson.org/what-is-parkinsons/causes/">unknown</a>, although Fox is among those who thinks <a href="https://www.cbsnews.com/video/michael-j-fox-on-parkinsons-and-maintaining-optimism">chemical exposure may play a central role</a>, speculating that “genetics loads the gun and environment pulls the trigger”. In research published today in <a href="https://pubs.acs.org/doi/10.1021/acscentsci.2c01468">ACS Central Science</a>, we built an artificial intelligence (AI) tool that can predict Parkinson’s disease with up to 96% accuracy and up to 15 years before a clinical diagnosis based on the analysis of chemicals in blood. While this AI tool showed promise for accurate early diagnosis, it also revealed chemicals that were strongly linked to a correct prediction. <h2>More common than ever</h2> Parkinson’s is the world’s <a href="https://www.who.int/news-room/fact-sheets/detail/parkinson-disease">fastest growing neurological disease</a> with <a href="https://shakeitup.org.au/understanding-parkinsons/">38 Australians</a>diagnosed every day. For people over 50, the chance of developing Parkinson’s is <a href="https://www.parkinsonsact.org.au/statistics-about-parkinsons/">higher than many cancers</a> including breast, colorectal, ovarian and pancreatic cancer. Symptoms such as <a href="https://www.apdaparkinson.org/what-is-parkinsons/symptoms/#nonmotor">depression, loss of smell and sleep problems</a> can predate clinical movement or cognitive symptoms by decades. However, the prevalence of such symptoms in many other medical conditions means early signs of Parkinson’s disease can be overlooked and the condition may be mismanaged, contributing to increased hospitalisation rates and ineffective treatment strategies. <h2>Our research</h2> At UNSW we collaborated with experts from Boston University to build an AI tool that can analyse mass spectrometry datasets (a <a href="https://www.sciencedirect.com/topics/neuroscience/mass-spectrometry">technique</a> that detects chemicals) from blood samples. For this study, we looked at the Spanish <a href="https://epic.iarc.fr/">European Prospective Investigation into Cancer and Nutrition</a> (EPIC) study which involved over 41,000 participants. About 90 of them developed Parkinson’s within 15 years. To train the AI model we used a <a href="https://www.nature.com/articles/s41531-021-00216-4">subset of data</a> consisting of a random selection of 39 participants who later developed Parkinson’s. They were matched to 39 control participants who did not. The AI tool was given blood data from participants, all of whom were healthy at the time of blood donation. This meant the blood could provide early signs of the disease. Drawing on blood data from the EPIC study, the AI tool was then used to conduct 100 “experiments” and we assessed the accuracy of 100 different models for predicting Parkinson’s. Overall, AI could detect Parkinson’s disease with up to 96% accuracy. The AI tool was also used to help us identify which chemicals or metabolites were likely linked to those who later developed the disease. <h2>Key metabolites</h2> Metabolites are chemicals produced or used as the body digests and breaks down things like food, drugs, and other substances from environmental exposure. Our bodies can contain thousands of metabolites and their concentrations can differ significantly between healthy people and those affected by disease. Our research identified a chemical, likely a triterpenoid, as a key metabolite that could prevent Parkinson’s disease. It was found the abundance of triterpenoid was lower in the blood of those who developed Parkinson’s compared to those who did not. Triterpenoids are known <a href="https://www.sciencedirect.com/topics/neuroscience/neuroprotection">neuroprotectants</a> that can regulate <a href="https://onlinelibrary.wiley.com/doi/10.1002/ana.10483">oxidative stress</a> – a leading factor implicated in Parkinson’s disease – and prevent cell death in the brain. Many foods such as <a href="https://link.springer.com/article/10.1007/s11101-012-9241-9#Sec3">apples and tomatoes</a> are rich sources of triterpenoids. A synthetic chemical (a <a href="https://www.cdc.gov/biomonitoring/PFAS_FactSheet.html">polyfluorinated alkyl substance</a>) was also linked as something that might increase the risk of the disease. This chemical was found in higher abundances in those who later developed Parkinson’s. More research using different methods and looking at larger populations is needed to further validate these results. <h2>A high financial and personal burden</h2> Every year in Australia, the average person with Parkinson’s spends over <a href="https://www.hindawi.com/journals/pd/2017/5932675/">A$14,000</a>in out-of-pocket medical costs. The burden of living with the disease can be intolerable. Fox acknowledges the disease can be a “nightmare” and a “living hell”, but he has also found that “<a href="https://www.cbsnews.com/video/michael-j-fox-on-parkinsons-and-maintaining-optimism">with gratitude, optimism is sustainable</a>”. As researchers, we find hope in the potential use of AI technologies to improve patient quality of life and reduce health-care costs by accurately detecting diseases early. We are excited for the research community to try our AI tool, which is <a href="https://github.com/CRANK-MS/CRANK-MS">publicly available</a>. This research was performed with Mr Chonghua Xue and A/Prof Vijaya Kolachalama (Boston University). Image credits: Getty Images This article originally appeared on <a href="https://theconversation.com/heres-how-a-new-ai-tool-may-predict-early-signs-of-parkinsons-disease-205221" target="_blank" rel="noopener">The Conversation</a>.

Mind

Beloved singing star reveals condition that may force early retirement

Scottish singer and songwriter Lewis Capaldi has opened up about his battle with Tourette’s syndrome, admitting it could lead him into early retirement. The Before You Go singer, 26, has shared details of his condition with fans in the past, making light of it online, even going viral on TikTok for how he handles his on-stage tics. Speaking to The Sun, the 26-year-old revealed it is a “very real possibility” he will have to put the mic down if his condition deteriorates. "It's triggered by stress, anxiety, and excitement. Basically, any strong emotion, you're f—ed," Capaldi, who was diagnosed with Tourette’s in 2022, said. "There are times it has been really bad and I've wondered whether I can continue to do this with the stress, anxiety, and Tourette's. It all comes as a direct result of doing this job.” Capaldi, renowned online for his self-deprecating sense of humour and cheeky commentary, said he has worried that the crowd may mistake his tics for drug use. He also revealed he may have to stop making music and performing if the condition progresses. "This isn't drugs, and I've had that accusation on nights out. People have asked me directly, 'Are you on drugs, is it cocaine?'" He explained. "If it got to a point where my quality of life was drastically diminished, I'd just have to quit.” Capaldi’s powerhouse voice has thrown him into the mix with UK greats including Sir Elton John and Ed Sheeran. He said that John has been a pillar of support during his struggles with anxiety, telling The Sun that the Rocket Man singer emails him regularly. In early 2023, a clip from Capaldi’s concert made waves online after fans helped him finish the song as he experienced a tic attack on stage. Capaldi was singing his perhaps most famous song, Someone You Loved, at a concert in Germany on February 21. Audience members were quick to notice the singer struggling, so they continued the song from where he left off, with him holding onto the microphone in an attempt to compose himself. In 2022, Capaldi shared his diagnosis with fans on Instagram. "I do the shoulder twitch a lot. And you see underneath every TikTok and stuff, people are like, 'Why is he twitching?', which is fine. Curiosity is fine. I get it," he said. "I haven't really learned much about it. I'm learning. I've got Botox on my shoulder to stop it moving. It worked for a bit," he said. "The worst thing about it is when I'm excited, I get it; when I'm stressed, I get it; when I'm happy, I get it. It happens all the time. "Some days it's more painful than others and some days it's less painful. It looks a lot worse than it is. Sometimes it's quite uncomfortable … but it comes and goes." Image credit: Getty

Music

Lie detection tests have worked the same way for 3,000 years – and they’re still hopelessly inaccurate

Popular culture is fascinated with the ability to detect liars. Lie detector tests are a staple of police dramas, and TV shows such as Poker Face feature “human polygraphs” who detect deception by picking up tell-tale signs in people’s behaviour. Records of attempts to detect lies, whether by technical means or by skilled observers, go back at least 3,000 years. Forensic science lie detection techniques have become <a href="https://onlinelibrary.wiley.com/doi/10.1111/j.1541-1338.2005.00166.x">increasingly popular</a> since the invention of the polygraph early in the 20th century, with the latest methods involving advanced brain imaging. Proponents of lie detection technology sometimes <a href="https://www.press.umich.edu/3091709/lying_brain">make grandiose claims</a>, such as a <a href="https://doi.org/10.1007/s11896-022-09566-y">recent paper</a> that said “with the help of forensic science and its new techniques, crimes can be easily solved”. Despite these claims, an infallible lie detection method has yet to be found. In fact, most lie detection methods don’t detect lies at all – instead, they register the physiological or behaviour signs of stress or fear. <h2>From dry rice to red-hot irons</h2> The <a href="https://journals.sagepub.com/doi/10.1177/1529100610390861">earliest recorded lie detection method</a> was used in China, around 1000 BC. It involved suspects placing rice in their mouths then spitting it out: wet rice indicated innocence, while dry rice meant guilty. In India, around 900 BC, <a href="http://scholarlycommons.law.northwestern.edu/cgi/viewcontent.cgi?article=2844&context=jclc">one method</a> used to detect poisoners was observations of shaking. In ancient Greece a rapid pulse rate was taken to indicate deceit. The Middle Ages saw barbaric forms of lie detection used in Europe, such as the red-hot iron method which involved suspected criminals placing their tongue, often multiple times, on a red-hot iron. Here, a burnt tongue indicated guilt. <h2>What the polygraph measures</h2> Historical lie detection methods were based in superstition or religion. However, in the early 20th century a purportedly scientific, objective, lie detection machine was invented: the polygraph. The <a href="https://www.ojp.gov/pdffiles1/nij/grants/228091.pdf">polygraph measures</a> a person’s respiration, heart rate, blood pressure, and skin conductance (sweating) during questioning. Usually a “control question” about a crime is asked, such as “Did you do it?” The person’s response to the control question is then compared to responses to neutral or less provocative questions. Heightened reactions to direct crime questions are taken to indicate guilt on the test. <h2>The overconfidence of law enforcers</h2> Some law enforcement experts claim they don’t even need a polygraph. They can detect lies simply by observing the behaviour of a suspect during questioning. Worldwide research shows that law enforcers are often <a href="https://doi.org/10.5093/apj2022a4">confident they can detect lying</a>. Many assume a suspect’s nonverbal behaviour reveals deceit. A <a href="https://www.emerald.com/insight/content/doi/10.1108/14636641111134314/full/html">2011 study with Queensland police</a> revealed many officers were confident they could detect lying. Most favoured a focus on nonverbal behaviour even over available evidence. However, <a href="https://link.springer.com/chapter/10.1007/978-3-319-96334-1_3">research shows</a> that law enforcers, despite their confidence, are often not very good at detecting lying. Law enforcement officers are not alone in thinking they can spot a liar. <a href="https://journals.sagepub.com/doi/10.1177/0022022105282295">Global studies</a> have found that people around the world believe lying is accompanied by specific nonverbal behaviours such as gaze aversion and nervousness. <h2>What’s really being tested</h2> Many historical and current lie detection methods seem underpinned by the plausible idea that liars will be nervous and display observable physical reactions. These might be shaking (such as in the ancient Indian test for poisoners, and the nonverbal behaviour method used by some investigators), a dry mouth (the rice-chewing test and the hot-iron method), increased pulse rate (the ancient Greek method and the modern polygraph), or overall heightened physiological reactions (the polygraph). However, there are two major problems with using behaviour based on fear or stress to detect lying. The first problem: how does one distinguish fearful innocents from fearful guilty people? It is likely that an innocent person accused of a crime will be fearful or anxious, while a guilty suspect may not be. This is borne out with the polygraph’s <a href="https://nap.nationalacademies.org/read/10420/chapter/10#218">high false-positive rate</a>, meaning innocent people are deemed guilty. Similarly, some police have assumed that <a href="https://cqu-primo.hosted.exlibrisgroup.com/permalink/f/1rb43gr/TN_cdi_informaworld_taylorfrancisbooks_9781843926337">innocent, nervous suspects were guilty</a> based on inaccurate interpretations of behavioural observations. The second major problem with lie detection methods based on nervous behaviour is there is <a href="https://journals.copmadrid.org/apj/art/apj2019a9">no evidence</a> that specific nonverbal behaviours reliably accompany deception. <h2>Miscarriages of justice</h2> Despite what we know about the inaccuracy of polygraph tests, they haven’t gone away. In the US, they are still used in some police interrogations and <a href="https://www.wired.com/story/inside-polygraph-job-screening-black-mirror/">high-security job interviews</a>. In the UK, lie detector tests are used for <a href="https://www.gov.uk/government/publications/domestic-abuse-bill-2020-factsheets/mandatory-polygraph-tests-factsheet">some sex offenders on probation</a>. And in China, the use of polygraphs in law enforcement may <a href="https://www.sciencedirect.com/science/article/abs/pii/S0031938414005964?via%3Dihub">even be increasing</a>. Australia has been less enthusiastic in adopting lie-detection machines. In New South Wales, the use of lie-detector findings was barred from court in 1983, and an attempt to present polygraph evidence to a court in Western Australia in 2003 <a href="https://www.tandfonline.com/doi/abs/10.1375/pplt.2004.11.2.359">also failed</a>. Many historical and current lie detection methods emulate each other and are based on the same assumptions. Often the <a href="https://muse.jhu.edu/book/13865">only difference</a> is the which part of the body or physical reaction they focus on. Using fallible lie detection methods <a href="https://journals.copmadrid.org/apj/art/apj2022a4">contributes to wrongful convictions</a> and miscarriages of justice. Therefore, it is important that criminal-justice practitioners are educated about fallacious lie detection methods, and any new technique grounded in fear or stress-based reactions should be rejected. Despite outward appearances of technological advancement, over many millennia little has changed. Fearful innocents remain vulnerable to wrongful assumptions of guilt, which is good news for the fearless guilty. This article originally appeared on <a href="https://theconversation.com/lie-detection-tests-have-worked-the-same-way-for-3-000-years-and-theyre-still-hopelessly-inaccurate-200741" target="_blank" rel="noopener">The Conversation</a>. Images: Getty

Technology

Can ideology-detecting algorithms catch online extremism before it takes hold?

Ideology has always been a critical element in understanding how we view the world, form opinions and make political decisions. However, the internet has revolutionised the way opinions and ideologies spread, leading to new forms of online radicalisation. Far-right ideologies, which advocate for ultra-nationalism, racism and opposition to immigration and multiculturalism, have proliferated on social platforms. These ideologies have strong links with violence and terrorism. In recent years, <a href="https://www.asio.gov.au/sites/default/files/2022-02/ASIO_Annual_Report_2020-21.pdf">as much as 40%</a> of the caseload of the Australian Security Intelligence Organisation (ASIO) was related to far-right extremism. This has <a href="https://www.abc.net.au/news/2023-02-13/right-wing-terror-threat-declines-says-asio/101965964">declined</a>, though, with the easing of COVID restrictions. Detecting online radicalisation early could help prevent far-right ideology-motivated (and potentially violent) activity. To this end, we have developed a <a href="https://arxiv.org/abs/2208.04097">completely automatic system</a> that can determine the ideology of social media users based on what they do online. <h2>How it works</h2> Our proposed pipeline is based on detecting the signals of ideology from people’s online behaviour. There is no way to directly observe a person’s ideology. However, researchers can observe “ideological proxies” such as the use of political hashtags, retweeting politicians and following political parties. But using ideological proxies requires a lot of work: you need experts to understand and label the relationships between proxies and ideology. This can be expensive and time-consuming. What’s more, online behaviour and contexts change between countries and social platforms. They also shift rapidly over time. This means even more work to keep your ideological proxies up to date and relevant. <h2>You are what you post</h2> Our pipeline simplifies this process and makes it automatic. It has two main components: a “media proxy”, which determines ideology via links to media, and an “inference architecture”, which helps us determine the ideology of people who don’t post links to media. The media proxy measures the ideological leaning of an account by tracking which media sites it posts links to. Posting links to Fox News would indicate someone is more likely to lean right, for example, while linking to the Guardian indicates a leftward tendency. To categorise the media sites users link to, we took the left-right ratings for a wide range of news sites from two datasets (though many are available). One was <a href="https://reutersinstitute.politics.ox.ac.uk/our-research/digital-news-report-2018">based on a Reuters survey</a> and the other curated by experts at <a href="https://www.allsides.com/media-bias/ratings">Allsides.com</a>. This works well for people who post links to media sites. However, most people don’t do that very often. So what do we do about them? That’s where the inference architecture comes in. In our pipeline, we determine how ideologically similar people are to one another with three measures: the kind of language they use, the hashtags they use, and the other users whose content they reshare. Measuring similarity in hashtags and resharing is relatively straightforward, but such signals are not always available. Language use is the key: it is always present, and a known indicator of people’s latent psychological states. Using machine-learning techniques we found that people with different ideologies use different kinds of language. Right-leaning individuals tend to use moral language relating to vice (for example, harm, cheating, betrayal, subversion and degradation), as opposed to virtue (care, fairness, loyalty, authority and sanctity), more than left-leaning individuals. Far-right individuals use grievance language (involving violence, hate and paranoia) significantly more than moderates. By detecting these signals of ideology, our pipeline can identify and understand the psychological and social characteristics of extreme individuals and communities. <h2>What’s next?</h2> The ideology detection pipeline could be a crucial tool for understanding the spread of far-right ideologies and preventing violence and terrorism. By detecting signals of ideology from user behaviour online, the pipeline serves as an early warning systems for extreme ideology-motivated activity. It can provide law enforcement with methods to flag users for investigation and intervene before radicalisation takes hold. Image credits: Getty Images This article originally appeared on <a href="https://theconversation.com/can-ideology-detecting-algorithms-catch-online-extremism-before-it-takes-hold-200629" target="_blank" rel="noopener">The Conversation</a>.

Technology

Detective steals thousands from elderly woman

An elderly woman who was scammed out of $30,000 in an online scam has once again been stolen from, after the police officer helping her recover the money stole her bank details. In May 2021, 74-year-old Sonia was robbed by fraudsters pretending to be NBN workers after they convinced her to transfer the hefty five-figure sum. After discovering it was a scam, Sonia then reported the crime to NSW Police, who sent a detective to her home to investigate. The officer was supposed to be helping Sonia recover her stolen money, but instead tried to use her credit card and banking details and purchase almost $20,000 worth of goods. The police officer fronted Liverpool Local Court on Wednesday where his barrister tried to explain his client's behaviour saying he had gone "off the rails" and fallen into a depression due to the nature of his work. In June 2021, the detective, who cannot be named, attended Sonia's home several times to investigate what happened, often wearing his full police uniform. To gain her sympathy, he said he had a brain aneurysm and had not yet told his girlfriend or work. According to police documents tendered to the court, Sonia trusted him and he told her she "reminded him of his own grandmother", the <a href="https://www.dailytelegraph.com.au/truecrimeaustralia/police-courts-nsw/detective-investigating-30k-fraud-on-74yo-woman-steals-her-credit-card-for-16k-shopping-spree/news-story/1823067b8a55dc184f1278ce6a933b69" target="_blank" rel="nofollow noopener">Daily Telegraph</a> reported. When he asked to see her online banking details, credit cards and passwords, Sonia gave them to him willingly, assuming they were needed for his investigation. The detective tried to buy close to $20,000 worth of items from JB Hi Fi, Big W and Myer, including iPhones, GoPro cameras and Apple Watches. Thankfully for Sonia, none of the attempted purchases went through, as they were all rejected by Sonia's bank as suspicious activity. When Sonia was notified of the attempted transactions, she immediately suspected the detective who had been supposed to be helping her. In court this week, the now former detective pleaded guilty to stealing Sonia's bank details, and will will face Downing Centre District Court in Sydney on May 12th when he will be sentenced. More than 18 months after the events, Sonia is still very troubled by what happened and blames herself. "I can't switch off a feeling that I was stupid in the first place ... I trusted this guy and then he did that," she said. Image credits: Getty Images

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Lie detection tests have worked the same way for 3,000 years – and they’re still hopelessly inaccurate

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Detective steals thousands from elderly woman

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