Sleep Cycles: One rapid eye movement (REM) stage and three non-REM stages that altogether last about 90 to 120 minutes Benefits: Physical and mental recuperation and memory consolidation Disorders: ...

When you picture the ideal night of sleep, what comes to mind? For many people, it’s (at least) eight blissful hours of uninterrupted snoozing. There’s no sound of snoring in your ear. No ...

Sleep comprises one third of our adult life. It is essential for normal functioning; without it, we experience memory lapses, have difficulty with concentration, experience mood alterations, become ...

When a person is asleep, their core body temperature drops. Heart rate and breathing also slow down and overall metabolic activity decreases by about 10%. A sleeping body may seem inactive at first ...