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http://www.youtube.com/user/TEDtalksDirectorOlivia Affuso: 3 ways community creates a healthy life | TED -

Maintaining a healthy weight takes more than diet and exercise, says physical activity epidemiologist Olivia Affuso. In this actionable talk, she shows how you can kickstart a healthy life by tapping into the collective power of a community that supports and motivates your health goals.

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