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Associated Press
In this Tuesday, Dec. 11, 2012 photo, Zendi Solano, center, trains with running club members Rian Barrett, second from right, and Richard Chen in Pasadena, Calif. Dr. Robert Sallis says some patients may not be aware that research shows physical inactivity is riskier than high blood pressure, obesity and other health risks people know they should avoid. As recently as November 2012, a government-led study concluded that people who routinely exercise live longer than others, even if they're overweight. (AP Photo/Mark J. Terrill)

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