Also called polysomnography, a sleep study is a test that's used to diagnose sleep disorders. The good news? A sleep study is a routine test and is safe and painless. A sleep study can test for ...

Obstructive sleep apnea is associated with higher rates of age-related macular degeneration development and progression.

Teenagers who do not get the recommended amount of sleep may be at an increased risk for high blood pressure, according to preliminary research presented at the American Heart Association's ...