Some people may also experience hypnagogic hallucinations during this stage.
..... Animals that do not need recovery sleep after staying awake longer than ...
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 our bodies need sleep? ... Researchers have also shown that after
people sleep, they tend to retain information and perform better on memory tasks.
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.
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.
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
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
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
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, ...
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 ...