Everyone needs sleep, but many of us don't get enough. Here's the latest news on sleep, including the health effects of getting too little or too much, tips on getting more rest, and the science behind why we slumber.
Short naps at the right time of day can boost focus, help solidify memories and potentially improve heart health.
Reproductive hormones may interfere with sleep quality and affect dreaming at different stages of the menstrual cycle.
Sleep apnea and a lack of deep sleep may be linked to abnormalities in the brain's white matter.
Waking and sleeping at inconsistent times may increase the risk of dying from cancer or heart disease death in middle-age and older adults.
A study suggests that just one night of sleep deprivation may be linked to structural changes in the brain, similar to those seen in aging.
Discover the science behind sleep talking, a behavior that over half the general population experiences at some point in their life.
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