Along with getting exercise and eating a nutritious diet, sleeping for 7-9 hours a night is at the top of every doctor's list of habits that will keep you healthy. Experts warn that skimping on sleep ...

Sleep Cycles: One rapid eye movement (REM) stage and three non-REM stages that altogether last about 90 to 120 minutes Benefits: Physical and mental recuperation and memory consolidation Disorders: ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American We all know we should get more sleep, we're ...

Hitting the gym every day and counting every calorie could be getting you the results you expect in the gym and on the scale, but if you are not getting enough sleep, you are not reaching your highest ...

How does your brain know when it's time to sleep? There are two main factors: Hours Awake. The longer you've been awake, the stronger your drive for sleep. Circadian Rhythm. Your body operates on a ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...