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 ...

While these expressions emphasise effort, they also come with health risks, particularly related to lack of sleep. A new study conducted by researchers at Uppsala University in Sweden has found ...

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 ...

Editor’s note: Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. To prep for a good night’s sleep, start at breakfast.