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Regular daytime naps could be good for brain health, new research suggests. Daytime napping could slow the rate at which brains shrink as we age, the study led by researchers at UCL and the University of the Republic in Uruguay found. The researchers hope their findings into the health benefits of sleeping during the day will reduce any stigma that still exists around daytime napping. The study suggests the average difference in brain volume between people programmed to be habitual nappers and those who were not was equivalent to 2.6 to 6.5 years of ageing. Our findings suggest that, for some people, short daytime naps may be a part of the puzzle that could help preserve the health of the brain as we get older Dr Victoria Garfield, UCL Senior author Dr Victoria Garfield, MRC Unit for Lifelong Health & Ageing at UCL, said: “Our findings suggest that, for some people, short daytime naps may be a part of the puzzle that could help preserve the health of the brain as we get older.” The study, published in the journal Sleep Health, analysed data from people aged 40 to 69. Past research has suggested people who have had a short nap perform better in cognitive tests in the hours afterwards than those who did not nap. The new study looked at whether there was a causal relationship between daytime napping and brain health. Researchers looked at 97 snippets of DNA thought to determine people’s likelihood of habitual napping. They compared measures of brain health and cognition of people who are more genetically programmed to nap with people who did not have these changes in DNA, using data from 378,932 people from the UK Biobank study. They found that, overall, people predetermined to nap had a larger total brain volume. The genetic variants – DNA changes – influencing the likelihood of someone to nap were identified in an earlier study looking at data from 452,633 UK Biobank participants. But the researchers did not find a difference in how well those programmed to be habitual nappers performed on three other measures of brain health and cognitive function. Lead author and PhD candidate Valentina Paz, University of the Republic (Uruguay) and MRC Unit for Lifelong Health and Ageing at UCL, said: “This is the first study to attempt to untangle the causal relationship between habitual daytime napping and cognitive and structural brain outcomes. “By looking at genes set at birth, Mendelian randomisation avoids confounding factors occurring throughout life that may influence associations between napping and health outcomes. “Our study points to a causal link between habitual napping and larger total brain volume.” Dr Garfield added: “I hope studies such as this one showing the health benefits of short naps can help to reduce any stigma that still exists around daytime napping.” Read More Dramatic rise in the number of women freezing their eggs Paramedics who found ‘poisoned’ couple dead in Mexico hotel room also fell ill Bruce Willis’ family honours him with first Father’s Day tributes since announcing his dementia diagnosis Richard Ford on Frank Bascombe, getting older and literary feuds: ‘At my age I can’t get into fistfights’ Families’ ‘disappointment’ as Croydon tram disaster driver cleared

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The boss of Silverstone has warned Just Stop Oil campaigners that they will be putting lives at risk if they protest at the British Grand Prix. The climate activists have already targeted the Lord’s Ashes Test, the Premiership rugby final and the World Snooker Championship so far this year. Speaking to the PA news agency ahead of Sunday’s race, Silverstone managing director Stuart Pringle said: “The fundamental difference here is that you are not putting your life in danger when you run on the pitch at Lord’s. “You are not putting your life in danger when you sit on a snooker table or protest at a flower show. “A motor racing track is not the place to go. It is extraordinarily dangerous and people will be putting lives at risk if they go there, and any sensible, right-thinking person can extrapolate what the ultimate risk here is. “My strong, strong message is: ‘Do not put your life in danger. This is not the place to go and sit on a floor’. It is absolute madness if someone climbs on to a live racing track.” Five protesters invaded last year’s British Grand Prix after they stormed the Wellington Straight – the fastest point of the Northamptonshire track – before sitting down during the opening lap. The contest had already been suspended following Alfa Romeo driver Zhou Guanyu’s high-speed crash, but a number of cars sped by the group before they were dragged away by marshals. The protesters were handed suspended jail sentences in March. Silverstone has worked alongside Northamptonshire Police to beef up security ahead of this year’s event, with a record 480,000 people expected to attend over the weekend, and more than 140,000 fans in place for the race. Pringle added: “We have no specific intelligence, but we will plan for the worst and hope for the best. If somebody is minded to invade a flower show then they are probably minded to invade a motor race because we have many more global viewers. “But there are plans in place. We will have a much more visible police presence around the event and we hope that fans help us to try and spot people who are planning to disturb people’s fun.” Lewis Hamilton is gearing up for his home race following a disappointing Austrian Grand Prix where he finished seventh and was then demoted to eighth after a post-race penalty for exceeding track limits. Hamilton was also dealt a public rebuke by Mercedes team principal Toto Wolff. The Austrian told Hamilton to “just drive the car” following a number of complaints by his driver over the radio. “There are days when I can say I’m truly proud of myself, and days like today when frustration takes over,” said Hamilton on his Instagram account. “In a race it can feel like you’re hanging off a cliff and losing the strength to hold on. “It’s confusing for us to have such strong performances one day and then be nowhere the next. “But when you really care about what you’re doing, you brush it off and keep fighting. Heads down for Silverstone.” Read More Charity boss speaks out over ‘traumatic’ encounter with royal aide Ukraine war’s heaviest fight rages in east - follow live Max Verstappen refuses to ponder title hat-trick despite another emphatic win Toto Wolff plays down impact of ‘just please drive it’ remark to Lewis Hamilton Austrian Grand Prix to remain on F1 calendar until at least 2030