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Biggest Loser Contestants Fight to Keep Weight Off (5-2-16)

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Published on May 4, 2016

A new study on former contestants on the Biggest Loser shows their metabolism slowing down over the course of six years-- making weight loss even more difficult. And a CDC report finds that playground concussions are on the rise. Steve Lacy, Dari Alexander and Dr. Devi Nampiaparampil discuss

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