Sleep in non-human animals refers to a behavioral and physiological state
characterized by ..... Whales do not seem to have REM sleep, nor do they seem
to have any problems because of this. One reas...
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.
Although we do not have a definitive answer to the question “why do we sleep? ...
Sleep appears to be an essential physiological process for humans and for ...
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.
Sleep is one of our most basic human needs. We spend about a third of our lives
doing it and there are serious health consequences to sleep deprivation. It.
Sleep is vital for giving your body a rest and allowing it to prepare for the next day
. This article about sleep will teach you why your brain needs to spend time in ...
However, they do know that humans must sleep and, in fact, people can survive
longer without food than without sleep. Sleep serves many functions – or more ...
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
Oct 17, 2013 ... While you are sleeping your brain's cleaning system goes into overdrive, ...
activities that support every thing we do — all of our movements, our thoughts, ...
the amount or kind of sleep humans get affects the washing process.
Nov 11, 2003 ... Any second grader knows why humans need food and water. The logic behind
sex becomes obvious with a quick lesson on birds and bees.