"The results... do not mean that 6-8 hours is the optimum amount of sleep for every person, nor do they prove that achieving that ‘Goldilocks’ range of sleep each day directly improves health or slows ageing."
@heidiledford.bsky.social on sleep study & impt caveats
www.nature.com/articles/d41...
Health outcomes were better in people who slept between about six and eight hours a day.