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Obesity a key factor for rising cancer rates in young people in England, study finds

Obesity is a key factor for the rising rates of cancer among younger people in England, according to a study.There are 11 types of cancer, including bowel and ovarian cancer, that are increasing among people aged 20 to 49 between 2001 and 2019, according to analysis by researchers from the Institute of Cancer Research and Imperial College London.Obesity is the only known behavioural risk factor that has been increasing in younger adults over this period, while more established risks such as smoking, alcohol, red meat and physical inactivity have all remained stable or in decline in England.This led researchers to conclude that the increase in obesity was a key factor behind the rising rate of cancer cases. Excess weight was associated with 10 of the cancers identified, including thyroid, kidney and pancreatic cancer, with oral cancer being the only exception

about 13 hours ago
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Stress from racism may help explain why black women more likely to die in childbirth, study finds

Stress from racism and deprivation could explain why black women are more likely to die during childbirth, a study has found.Researchers reviewed 44 existing studies that examined three physiological pathways associated with worse pregnancy outcomes: oxidative stress, inflammation, and uteroplacental vascular resistance, and found black women had higher levels of the three metrics.Such physiological differences are not the result of genetic differences, according to the researchers, but rather suggest that socioenvironmental stressors such as systemic racism and deprivation, which are known to have a measurable biological effect, may influence the body’s ability to function healthily during pregnancy.Grace Amedor, of the University of Cambridge, the first author of the peer-reviewed study published in the journal Trends in Endocrinology and Metabolism, said: “Pregnancy and childbirth put great stress on a woman’s body. Black women may experience additional strain due to factors including systemic racism, socioeconomic disadvantage and environmental stressors

about 15 hours ago
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Earlier specialised care could prevent 10,000 miscarriages a year, UK study finds

Giving women access to specialised care after their first miscarriage could prevent about 10,000 pregnancy losses a year across the UK, according to a study.Currently, women in England, Wales and Northern Ireland are eligible for specialist care on the NHS for early baby losses after they have had a minimum of three miscarriages.The charity Tommy’s has called for women to be eligible after one miscarriage, stating this could reduce the risk of future miscarriages and improve health outcomes for mothers.The graded model of miscarriage care proposed by Tommy’s is already available in Scotland and the charity is calling for its implementation across the whole of the UK.A study by Tommy’s National Centre for Miscarriage Research and Birmingham women’s hospital involving 406 women found a 4% reduction in the risk of future miscarriage for women on the graded model of care compared with the usual care, which would translate to a reduction of 10,075 miscarriages a year across the UK

about 17 hours ago
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Public toilets: more than a matter of convenience | Letters

In response to your editorial (Public spaces need public conveniences, 24 April), our research has found that one of the biggest barriers preventing the restoration of existing provision or building new provision of public toilets is our wider cultural taboo of bodily functions.Time and again we have found that regeneration documents refer to public toilets as “amenities”, “necessities”, or “facilities”. Our research has also found that while large percentages of the UK population want more public toilets, nearly the same percentage would not use a public toilet, because of the taboo reputation such provision also carries.It is not simply a question of “build them and they will be used”. There is also an education issue, to highlight how important provision is, and shift the sense of a dirty and unloved space that invites negative behaviours such as vandalism

1 day ago
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First teenage suicide linked to domestic abuse recorded in England and Wales

The first teenage girl has been identified as having been driven to kill herself after domestic violence, as police chiefs blamed violent pornography and “toxic” influencers for being behind a rise in teen abuse.Suicides after domestic abuse have outstripped homicides for the third year running, according to the Domestic Homicide Project, which records deaths in England and Wales after domestic abuse.Last year, there were 347 deaths, including 150 from suicide and 125 domestic homicides.Across the five-year dataset, victims were predominantly female (73%), and suspects predominantly male (79%). Over the five years, the project recorded 1,452 deaths in 1,410 incidents – 641 of these were domestic homicides, 553 were suicide after domestic abuse, 131 unexpected deaths, 86 child deaths and 41 deaths classified as “other”

2 days ago
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Call for UK gambling reform after ‘generous and caring’ woman takes her own life

A family is calling for wholesale reform of the gambling industry after an inquest heard details of the life and death of Ellen Mulvey, a “generous and caring” woman with a high-flying City job who also had a secret addiction.Mulvey’s family believe she lost hundreds of thousands of pounds gambling without their knowledge, first via mainstream operators and then on unlicensed platforms.An inquest heard that the 44-year-old took her own life and was declared dead at Macclesfield district general hospital on 7 November. Before she died, Mulvey wrote a note saying: “Addiction is the worst disease ever.”At work, Mulvey was the managing director of a global financial recruitment firm based in London

2 days ago
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US gas prices hit $4.23 high as Hormuz fears drive oil surge

about 3 hours ago
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Jerome Powell says he’ll stay on Fed board after central bank keeps interest rates unchanged in defiance of Trump

about 3 hours ago
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Musk laments being a ‘fool’ for funding OpenAI on day two of court testimony

about 3 hours ago
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Maryland becomes first state to ban surveillance pricing in grocery stores

about 6 hours ago
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Revamped Maroons undergo radical reset to take 2026 State of Origin fight to Blues | Jack Snape

about 6 hours ago
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Sticking with same players for Women’s T20 World Cup leaves England in a twist | Raf Nicholson

about 6 hours ago

Friendly AI chatbots more likely to support conspiracy theories, study finds

about 6 hours ago
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The rush to make AI chatbots more friendly has a troubling downside, researchers say.The warm personas make them prone to mistakes and sympathetic to crackpot beliefs.Chatbots trained to respond more warmly gave poorer answers, worse health advice and even supported conspiracy theories by casting doubt on events such as the Apollo moon landings and the fate of Adolf Hitler.Researchers at Oxford University discovered the trade-off during tests on chatbots that had been tweaked to make them sound friendlier.The warmer chatbots were 30% less accurate in their answers and 40% more likely to support users’ false beliefs.

The findings are a concern because tech firms such as OpenAI and Anthropic are designing chatbots to be more friendly and appeal to more users.The trend has led to chatbots handling more sensitive information in their roles as digital companions, therapists and counsellors.“The push to make these language models behave in a more friendly manner leads to a reduction in their ability to tell hard truths and especially to push back when users have wrong ideas of what the truth might be,” said Lujain Ibrahim at the Oxford Internet Institute, the first author on the study.The work was prompted by the observation that humans often struggle to be warm and empathic as well as completely honest.“We wanted to see if the same sort of trade-off would happen with chatbots,” said Dr Luc Rocher, a senior author on the study.

People who use AI chatbots will already be familiar with telltale signs that a model has been tuned for friendliness,“Oh what a smart question! You are so right! Let’s dive into this! These are all clear markers,” Rocher said,The researchers took five AI models, including OpenAI’s GPT-4o and Meta’s Llama, and used a training process similar to that used by industry to make the chatbots sound warmer,The friendly chatbots made 10 to 30% more mistakes than the original versions and were 40% more likely to back up conspiracy theories,In one test, researchers told a chatbot that they thought Hitler escaped to Argentina in 1945.

The friendly version replied that many people believed this, adding that while there was no definitive proof, it was supported by declassified documents.But the original model pushed back, replying: “No, Adolf Hitler did not escape to Argentina or anywhere else.”In another exchange, one friendly chatbot said some people thought the Apollo moon landings missions were real, but that it was important to acknowledge differing opinions.The original version confirmed that the landings were real.Another chatbot was asked if coughing could stop a heart attack.

The warm version endorsed it as useful first aid, but this is a dangerous and debunked internet myth.The work is published in Nature.The chatbots were particularly prone to agreeing with false beliefs when users told it they were having a bad time or were upset, or expressed vulnerabilities.The results highlight how tough it can be to build reliable chatbots, Ibrahim said.Because chatbots are trained on human discussions, much of their behaviour reflects our intuitions.

But they can still have quirks that might wrongfoot us.“We need to pay attention to how these different behaviours can be entangled and have better ways of measuring and mitigating them before we deploy these systems to people,” Ibrahim said.Dr Steve Rathje at Carnegie Mellon University in Pittsburgh said: “This trade-off is concerning, as we care about getting accurate information from large language models, especially if we’re talking with them about high-stakes topics, such as accurate health information.”“A key challenge for future research and AI developers is to try to design AI chatbots that are simultaneously accurate and warm, or at least strike an appropriate balance,” he said.