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 ...

The health benefits of a good night’s sleep have long been touted by researchers and medical professionals.While you’re catching z’s, your body is hard at work maintaining your physical and ...

Share on Pinterest Poor sleep can impact health in many ways, particularly the heart. blackCAT/Getty Images A study led by researchers from Uppsala University examined how sleeping poorly can ...

“[Sleep habits] are important for all brains. They’re especially important for developing brains,” said Dr. Gene Beresin. Mark Herz: This is GBH’s Morning Edition. With summer vacation just around the ...

Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. When jolted awake by the blare of an alarm ...

Summer means more time for fun in the sun, but longer days and warmer temperatures aren't exactly the best combination for *** good night's sleep. Sleep follows the core body temperature cycle.