It’s not how long you sleep—but how well—that may determine your brain health, according to new scientific findings.

A major study by smart ring and CGM maker Ultrahuman highlights patterns between when you go to sleep and elevated blood ...

A new pooled analysis led by UCSF researchers suggests that how your brain looks during sleep, its so‑called brain age, may help predict who goes on to develop dementia. In roughly 7,100 U.S. adults ...

Sleep trackers cause anxiety in 18% of users despite promising better rest, with young adults most vulnerable to data-driven sleep obsession.

Add Yahoo as a preferred source to see more of our stories on Google. When you’re struggling to get the recommended seven-plus hours of sleep each night, logging anything more than that sounds like a ...

A large observational study suggests that around seven hours of nightly sleep is associated with lower insulin resistance, ...

Exhausted all options for better sleep? You’re not alone. About 12% of Americans experience chronic insomnia, defined as trouble falling asleep, staying asleep or returning to sleep after waking up in ...

It might be worth working a little bit harder to get that much-desired, but often elusive, good night's sleep. Deep sleep clears the mind of waste just as a "dishwasher" cleans dirty plates and ...

What is a sleep study? A sleep study, also known as a polysomnogram, is a diagnostic test that monitors various body functions while a person is asleep. It is most commonly used to diagnose sleep ...

Nearly 54 million US adults are believed to suffer from obstructive sleep apnea (OSA), which occurs when muscles in your throat relax and repeatedly block your airway, causing you to stop breathing as ...

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