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 ...

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 ...

If you still feel tired after getting eight hours of sleep, something may be precluding you from feeling well-rested. Certain ...

Share on Pinterest Sleep is possibly the most important factor for longevity, research shows. Image credit: Maria Korneeva/Getty Images Insomnia is a disorder characterized by experiencing difficulty ...