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Opinion
Always Hungry? Here’s Why <http://p.nytimes.com/email/re?location=InCMR7g4BCKC2wiZPkcVUsaVB275xiHB&user_id=cc183a003d2c1f3d472790cd402cb1ac&email_type=eta&task_id=140025664133119&regi_id=0>
By DAVID S. LUDWIG and MARK I. FRIEDMAN

Are we fat because we overeat, or do we overeat because we’re fat?


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