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

Why do our bodies need sleep? This simple explanation can help you understand.

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

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.

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

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 ...

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

To feel rested and refreshed upon awaking, most adults require 7–8 hours of sleep, although this number varies among individuals (Figure 28.1A). As a result, a ...

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

Human beings can function without a full tune-up, but they will be in a state of relative sleep deprivation and won't be able to work or to think as well as they do  ...

www.howsleepworks.com/why.html

Sleep appears to be an essential physiological process for humans and for most other animals, other than very simple ones with small brains. When deprived of ...

www.tuck.com/why-sleep

May 24, 2017 ... However, they do know that humans must sleep and, in fact, people can survive longer without food than without sleep. Sleep serves many ...

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.nature.com/neuro/journal/v3/n12/full/nn1200_1225.html

Although there is still no satisfying answer to the question of why we sleep, rapid ... sleep deprivation in birds interferes with learning as it does in humans.