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There are a few populations in the world where back pain hardly exists. One woman thinks she has figured out why, and she's sharing their secrets. Have Americans forgotten how to stand properly?
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The Navajo Nation started taxing junk food and soda. No other tribe has passed such a law. But half of the tribe is unemployed and say they can't afford expensive food.
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Back in 2012, Emelin asked the mayor to help the girls of her town. He laughed in her face. But she didn't give up. This week, she told the U.N. General Assembly about her efforts.