Sleep: Why We Need It and What Happens Without It

What happens when you don't sleep? And why do we need to do it anyways? Hank explains the science of sleep: the cause, the benefits, and who holds the record for going without it!

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Sources for this episode:
http://healthysleep.med.harvard.edu/healthy/science/what/characteristics
http://healthysleep.med.harvard.edu/healthy/matters/benefits-of-sleep/why-do-we-sleep
http://faculty.washington.edu/chudler/chasleep.html
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http://www.bbc.co.uk/science/humanbody/sleep/articles/whatissleep.shtml
http://healthysleep.med.harvard.edu/image/200
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http://phys.org/news/2011-02-why-do-we-sleep.html
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3385863/
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http://harvardmagazine.com/2005/07/deep-into-sleep.html

Видео Sleep: Why We Need It and What Happens Without It канала SciShow