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Circadian Rhythm and Your Brain's Clock

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Published on Jan 9, 2014

Why do we sleep at night instead of during the day? In this episode of SciShow Hank talks about circadian rhythms, how they work, and how they regulate different processes in our bodies.
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Sources:
http://www.ncbi.nlm.nih.gov/pubmed/18...
http://www.livescience.com/13123-circ...
http://www.sleepfoundation.org/articl...
http://www.aasmnet.org/resources/fact...
http://www.helpguide.org/harvard/slee...
http://www.princeton.edu/~ota/disk1/1...
http://news.uci.edu/press-releases/ci...
http://blogs.nature.com/news/2012/03/...
http://news.yale.edu/2013/06/17/rhyth...
http://online.wsj.com/news/articles/S...

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