Dr Walker has been studying sleep for 20 years, mostly trying to answer the question, ‘Why do we sleep?’ “I fell in love with sleep as I read about it,” he says. “I still think it’s ...

Sleep can be divided into 2 phases — non-rapid eye movement (NREM) and rapid eye movement (REM) — and 4 stages that make a complete cycle. You’ll typically complete 4 to 6 cycles per night ...

The quality of sleep is essential for effective weight loss, experts believe. Health coverage provider Affinity Health added ...

Like the name of the condition suggests, you're not awake. Typically you're in the deeper stages of sleep. Once you wake up, you may feel confused or have next to no memory of what you did.

Experts recommend that adults, including seniors, get at least 7 hours of sleep a day. However, with age, the average sleep time shortens by about 30 minutes per decade.

Find out how to get the amount of rest you need. Are You Getting Enough Sleep? Stages of Sleep Facts About Dreaming Do You Get Good Sleep? Keeping a Sleep Diary ...