Hank tells us a few of the shocking points that could be triggering or contributing to the obesity epidemic. Like SciShow on Facebook: http://www.facebook.com/scishow Comply With SciShow on Twitter: http://www.twitter.com/scishow Referrals: http://www.nlm.nih.gov/medlineplus/news/fullstory_118194.html http://www.cdc.gov/obesity/data/trends.html http://news.bbc.co.uk/2/hi/health/7151813.stm http://news.discovery.com/human/gut-bacteria-obesity-111026.html

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