Medical professionals need to build a system that focuses on how to help patients achieve what's most important to them at the end of their lives, says Dr. Atul Gawande. hide caption

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A group of teenagers take a morning jog at the Wellspring Academy in Reedley, Calif., in 2009. The school specializes in helping teens and college students lose weight. A new study shows teens who remain obese risk a lifetime of chronic health problems and poverty. Justin Sullivan/Getty Images hide caption

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This tiny telescope gets implanted in one eye and magnifies the image to make up for "holes" in the person's vision. It can greatly improve sight for some people with age-related macular degeneration. Courtesy VisionCare Ophthalmic Technologies hide caption

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