Obesityby SciShow   6 years ago

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Hank tells us some of the surprising things that could be causing or contributing to the obesity epidemic.

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References:
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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