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: ...
Researchers at the University of Lausanne have identified a novel role for the brain's "locus coeruleus" in sleep and its disruptions. This brain region facilitates the transition between NREM and REM ...
Sleep deprivation doesn’t just leave you tired—it might be setting the stage for serious heart problems. While many people view sleep as optional when life gets busy, research increasingly shows that ...
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Sleep: Facts about how and why we sleep
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 ...
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