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 ...

A recent study co-authored by MIT economists challenges the common assumption that getting more sleep leads to increased energy, emotional stability, and overall well-being. The study, conducted in ...

New research suggests caffeine drinkers "may have difficulty accurately perceiving the influence of caffeine on sleep quality" Brenton Blanchet is an Associate Editor on PEOPLE's TV team. He has been ...

Short sleep may alter how diet affects your health. New research links better diet quality to lower metabolic risk in women ...