Michael Ferrara with his German shepherd, Lhotse, at the top of Colorado's Independence Pass Paolo Marchesi/Outside hide caption

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A U.S. soldier is brought to the emergency room at the U.S. hospital at Bagram Air Field, north of Kabul, after he was wounded by a roadside bomb in Wardak province, June 2009. The facility uses both cutting-edge technology as well as old techniques discovered anew to treat the massive number of wounded soldiers who pass through. Rafiq Maqbool/AP hide caption

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The definitions for some mental disorders may change in the new edition of the DSM. Mark Strozier/iStockphoto.com hide caption

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