What is a sleep study? A sleep study, also known as a polysomnogram, is a diagnostic test that monitors various body functions while a person is asleep. It is most commonly used to diagnose sleep ...

It might be worth working a little bit harder to get that much-desired, but often elusive, good night's sleep. Deep sleep clears the mind of waste just as a "dishwasher" cleans dirty plates and ...

IT IS HARD to overstate the importance of sleep. Regular hours of rest offer organisms of all sizes a chance to consolidate memories, repair cells and boost the health of their immune systems. But the ...

Sleep has emerged as the most important factor for life expectancy bar smoking in a new study from Oregon Health & Science ...

If you regularly have a hard time getting restful sleep, you may need a sleep study. Also called polysomnography, a sleep study is a test that's used to diagnose sleep disorders. The good news? A ...

Share on Pinterest A new mouse study shows that more toxins and metabolites are cleared from the brain during awake time than during sleep. romaset/Getty Images A new study in mice suggests the ...

This story was featured in The Must Read, a newsletter in which our editors recommend one can’t-miss story every weekday. Sign up here to get it in your inbox. For most of my adult life, I’ve been ...

In the latest evidence of the direct relationship between sleep and health, researchers have found that chronic insomnia can significantly increase dementia risk. That equates to a three-year ...

Or you could just find ways to help people go to bed and wake up at roughly the same time. According to a study published earlier this year in the journal Sleep, people who embrace high sleep ...

Abigail Dove receives funding from Alzheimerfonden, Demensfonden, and the Loo and Hans Osterman Foundation for Medical Research. We spend nearly a third of our lives asleep, yet sleep is anything but ...