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 ...

People who are mistreated at work tend to take out their frustrations at home, but a new study shows that exercise and sleep can help.

There are far more people who would like to need less sleep than who actually need less sleep,” says Dr. Daniel Buysse, ...