Sleep
Study links pre-workout supplement use to very short sleep among teens and young adults
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Teenagers and young adults who reported using pre-workout dietary supplements were more than twice as likely as non-users to say they slept five hours or less per night, according to an analysis of Canadian survey data published in the journal Sleep Epidemiology.
A Swiss study debunks the widespread notion of spring fatigue as a myth. Researchers from the University of Basel and Inselspital Bern found no evidence of increased tiredness in spring in a year-long survey of 418 people.
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A comprehensive study of over 3,500 adults has found that consuming more dietary fibre is associated with increased time in deep sleep. Participants who ate above-average amounts of fibre spent more time in restorative sleep stages and had lower heart rates at night. Greater variety in plant-based foods also helped some fall asleep faster.
Researchers have discovered that jellyfish sleep for about eight hours a day, including midday naps, much like humans. This finding in brainless marine creatures suggests sleep's benefits may be ancient and widespread. The study highlights how sleep helps repair neuronal damage in these simple animals.
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New research indicates that poor sleep quality can make the brain age faster than the body, potentially increasing risks for conditions like dementia. Scientists suggest chronic inflammation from inadequate sleep plays a key role in this process. This finding clarifies a long-standing uncertainty about whether bad sleep causes cognitive decline or merely signals it.