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Circadian Rhythm and Your Brain's Clock

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. ---------- Our President of Space for this episode:    / kurzgesagt   ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook:   / scishow   Twitter:   / scishow   Tumblr:   / scishow   Thanks Tank Tumblr:   / thankstank   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...