Web Results

healthysleep.med.harvard.edu/healthy/matters/benefits-of-sleep/why-do-we-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.

sleepfoundation.org/excessivesleepiness/content/why-do-we-need-sleep

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 ...

www.bbc.com/news/science-environment-32606341

May 15, 2015 ... New research is giving scientists an insight into why we sleep and what ... Several studies show that the light bulb has led people shifting their ...

www.themarysue.com/understanding-sleep

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.

www.howsleepworks.com/why.html

We know that we need sleep, but exactly why is much harder to pin down ... In the same way as a feeling of hunger reminds us of the basic human need to eat, ...

kidshealth.org/en/kids/sleep.html

This article about sleep will teach you why your brain needs to spend time in bed ... But many older people only need about 7 or 8 hours of sleep each night.

www.iflscience.com/health-and-medicine/why-do-we-sleep

Sleep is one of our most basic human needs. ... “as far as I know, the only reason we need to sleep that is really, really solid is because we get sleepy.” As lying ...

www.ncbi.nlm.nih.gov/books/NBK11108

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 ...

www.nbcnews.com/id/3076707/ns/technology_and_science-science/t/why-do-we-need-so-much-sleep

What we do know is that sleep is an anabolic, or building, process. ... One of the ways we have of understanding why we need to sleep so much is to look at what  ...

motherboard.vice.com/en_us/article/four-leading-theories-on-why-humans-need-to-sleep

Jan 20, 2016 ... "There've been a lot of people who have developed theories about why we sleep, but most of those theories are actually really incomplete ...