Sleep is one of life’s most universal behaviors. Despite its ubiquity, it’s also one of the most mysterious. Humans spend ...

Ever wondered what happens if you don’t sleep for days. Sleep is not just rest—it’s essential for your brain, body, and ...

Sleep inertia occurs when your body is fighting to stay asleep when you want it to wake up. It generally feels like a temporary disorientation and drop in performance or mood after you wake up. Here's ...

In 1959, New York DJ Peter Tripp became a test subject for sleep’s effects. His 201-hour wakeathon made him see spiders in his shoes and question his identity. This shows why sleep is essential, not ...

Even a boneless, gelatinous sack lacking a dedicated anus and brain needs its beauty sleep, a new study by researchers from ...

Researchers trace how different sleep stages may fine-tune what we remember, trading specifics for more general knowledge. When you purchase through links on our site, we may earn an affiliate ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The grueling Medical College Admission Test, or MCAT, was first ...

As many as 70 million people in the U.S. have problems with sleep, and many are increasingly turning to melatonin supplements to help them fall asleep. People generally perceive these over-the-counter ...

New research has pinpointed the exact amount of sleep that could be cutting “years off your life”. Regularly getting this ...