Can what you eat affect the way you sleep or the types of dreams you have? A recent study asked just that. In the study, published Monday in the journal Frontiers in Psychology, 40.2% of participants ...

New research suggests caffeine drinkers "may have difficulty accurately perceiving the influence of caffeine on sleep quality" Pixdeluxe/Getty Coffee drinkers may want to think twice before having ...

Researchers at the University of Pennsylvania conducted a seven-night sleep laboratory study and found that REM sleep decreased by an average of 19 minutes per night when participants were exposed to ...