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Some people may also experience hypnagogic hallucinations during this stage. ..... Animals that do not need recovery sleep after staying awake longer than ...

Why Do We Sleep, Anyway? | Healthy Sleep

Dec 18, 2007 ... Still, the question remains: Why do we need sleep at all? ... Although it may be less apparent to people living in societies in which food sources ...

Why Do We Need Sleep? - Excessive Sleepiness

Why do our bodies need sleep? ... Researchers have also shown that after people sleep, they tend to retain information and perform better on memory tasks.

Scientists Finally Understand Why We Need Sleep, And It's Because ...

Oct 19, 2013 ... Humans need sleep; everybody knows that without it, we get cranky, a bit ... for our body's mental street-cleaners to come out and do their work.

Why do we sleep? - BBC News -

May 15, 2015 ... New research is giving scientists an insight into why we sleep and what happens when we do it. ... sleep are only seen in those few people sleeping around five hours, where weight ... 'Arrogance' of ignoring need for sleep.

Why Do I Need to Sleep? - KidsHealth

The amount of sleep a person needs depends a lot on his or her age. Babies sleep a lot — about 14 to 15 hours a day! But many older people only need about 7 ...

Why We Need to Sleep - Sleepdex

Scientists have yet to determine exactly why people sleep. However, they do know that humans must sleep and, in fact, people can survive longer without food  ...

Why Do Humans and Many Other Animals Sleep? - Neuroscience ...

For infants, the requirement is much higher (about 16 hours a day), and teenagers need on average about 9 hours of sleep. As people age, they tend to sleep ...

The First Real Reason We Need To Sleep - Business Insider

Oct 17, 2013 ... While you are sleeping your brain's cleaning system goes into overdrive ... that support every thing we do — all of our movements, our thoughts, ...

Why do we sleep? To clean our brains, say US scientists | Science ...

Oct 18, 2013 ... Cerebral spinal fluid found to pump around the brain of sleeping mice, flushing ... that show a build up of waste in the brains of sleep-deprived people, and a ... "It may be that we can reduce the need at least, because it's so ...

Popular Q&A
Q: Why do people need sleep?
A: Scientists do not know exactly why people need sleep, but studies show that sleep is necessary for survival. Sleep appears to be necessary for the nervous syste... Read More »
Q: Why do people need sleep?
A: There is discussion among scientists that it is a way of organizing memories, and "recuperating" theories and inferences citing dreams, as well as the mixed sub... Read More »
Q: Why do people need sleep?
A: Sleep is necessary for our nervous systems to work properly. Too little sleep leaves us Read More »
Q: Why do people need sleep?
A: There are many functions the body performs during sleep. One very important one is to clean up toxins that accumulate during the day. Your body creates toxins a... Read More »
Q: Why do people need to sleep.
A: Sleep is important because it gives your body time to recuperate and recover from the day. Getting enough sleep is part of a healthy lifestyle. It keeps your mi... Read More »