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Insects do not seem to exhibit REM sleep. ... brain stem, as it does in humans, but does not extend at all to ...

Why Do We Sleep, Anyway? | Healthy Sleep


Dec 18, 2007 ... Still, the question remains: Why do we need sleep at all? ... for example, what happens when humans or other animals are deprived of sleep.

Why Do We Need Sleep? - Excessive Sleepiness


Researchers have also shown that after people sleep, they tend to retain information and perform better on memory tasks. Our bodies all require long periods of ...

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 - BBC.com


May 15, 2015 ... Research suggests that parts of the human brain may well be asleep when it is sleep-deprived. Studies on whales and dolphins show that ...

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


As people age, they tend to sleep more lightly and for shorter times, although often ... (A) The duration of sleep each night in adults is normally distributed with a ...

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 we need so much sleep? - Technology & science - Science ...


What we do know is that sleep is an anabolic, or building, process. ... Human beings can function without a full tune-up, but they will be in a state of relative 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 ...

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, ... so we don't yet know how the amount or kind of sleep humans get affects the ...

Popular Q&A
Q: Why do humans sleep.
A: Humans sleep to replenish the energy the lose during the activities of their Read More »
Source: www.chacha.com
Q: Why do humans sleep?
A: Dear John, Almost all complex organisms engage in some form of sleep.  Even plants. This means that sleep is a very primitive characteristic of complex organism... Read More »
Source: en.allexperts.com
Q: Why Do Humans Sleep?
A: The idea that animals that are at high risk of being hunted tend to sleep less seems very logical. These animals usually have to run or hide from predators, but... Read More »
Source: www.associatedcontent.com
Q: Why do humans have to sleep?
A: no one knows for sure but psychologist have many theories. during sleep: certain part of the brain become more active. fluctuation of brain waves occur. you go ... Read More »
Source: answers.yahoo.com
Q: Why do humans sleep at night?
A: because theyr'e tired! Read More »
Source: wiki.answers.com