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.
Latest about Sleep
'Power naps' improve memory and lower heart disease risk, but long naps can have drawbacks
Short naps at the right time of day can boost focus, help solidify memories and potentially improve heart health.
Can the menstrual cycle affect people's sleep and dreams?
Reproductive hormones may interfere with sleep quality and affect dreaming at different stages of the menstrual cycle.
Sleep apnea linked to changes in the brain's wiring that may raise risk of dementia, stroke
Sleep apnea and a lack of deep sleep may be linked to abnormalities in the brain's white matter.
Irregular sleep may increase your risk of dying from cancer and heart disease
Waking and sleeping at inconsistent times may increase the risk of dying from cancer or heart disease death in middle-age and older adults.
How long can you go without sleep?
And what can happen to your body if you stay awake way past your bedtime?
Human brain looks years 'older' after just one night without sleep, small study shows
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.
What is sleep talking? We look at the science
Discover the science behind sleep talking, a behavior that over half the general population experiences at some point in their life.
How does alcohol affect sleep?
A nightcap can often make people feel tired, but how does alcohol affect sleep?
