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Spending lower proportions of time in two deep sleep stages — including REM sleep — may be linked to volume changes in ...

Not getting enough of deeper stages of sleep raises the risk of brain deterioration associated with Alzheimer’s disease, a ...

Sleep is still a mystery, despite how critical it is for our health. Most of us spend roughly one third of our lives sleeping, but you may need more or less than eight hours a night. Here’s what ...

Time to give these so-called sleep hacks a rest? The team behind the sleep tracker Sleep Cycle crunched data from over 1 million global users to determine the social media slumber shortcuts that ...

A new study of over 45,000 young adults found that using screens in bed increases the risk of insomnia by 59% and cuts sleep ...

Need another reason to prioritize your sleep? Not spending enough time in the two deep stages of sleep — slow-wave and rapid eye movement, or REM, sleep — may hasten the deterioration of parts ...

Sleeping well is vital for energy and good health — but getting the right amount of different stages of sleep can make all the difference. Among the various sleep stages, two of the most well ...

This hunting method is called corralling. Dolphins sleep, but they do it in a very different way than humans do. These creatures sleep with only half of their brain at a time, while the other half ...

Mar. 31, 2025 — New research reveals that lower proportions of specific sleep stages are associated with reduced brain volume in regions vulnerable to the development of Alzheimer's disease over ...