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Sleep study: What is polysomnography?

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 ...
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Healthbeat 4: Your options for taking a sleep test and what to expect

SIOUX CITY (KTIV) - Sleep apnea is a common sleep disorder. Local health experts say it affects more than 30 million adults in America. Last week in Healthbeat 4, Jessica Bowman showed you the first ...
Verywell Health on MSN

The 4 stages of sleep: What happens during each cycle

Medically reviewed by Sanja Jelic, MD Key Takeaways The sleep cycle has three NREM stages and one REM stage.Deep sleep occurs in stage 3 and is crucial for feeling refreshed.REM sleep helps in ...
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What Happens In The Brain During Sleep

Have you ever wondered what actually happens in the brain during sleep? While your body appears still and at rest, your brain remains highly active, carrying out essential processes that keep you ...