Here’s what you’ll learn when you read this story: We have evolved a sleep cycle that goes from non-REM to REM sleep and back again, but until now, the biological function of this oscillation was ...

If you find it hard to focus after a wakeful night, it’s because your brain is busy trying to catch up on crucial ...

Caffeine doesn't just make it harder to fall asleep; it changes how the brain behaves during rest. New research shows that caffeine alters brain activity in ways that make sleep look more like ...

Late-night scrolling isn’t the only thing sabotaging your slumber. New research suggests that a common daily habit may send your brain into overdrive while you sleep — even if you do it hours before ...

Getting a restful night’s sleep is important because it’s the body’s nightly reset button. While you drift off, your brain ...

Lots of studies have shown that getting a good night’s rest (seven to eight hours) is associated with better memory and other ...