Experiences in youth shape our health in old age. That's the key lesson from the world's longest-running medical study. iStockphoto.com hide caption

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Death investigations among seniors are often skipped, leaving the growing population vulnerable to neglect and abuse. Andres Cediel/Frontline hide caption

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One takeaway point of the research is that older women should try to reduce the chances of getting a hip fracture, the lead author of the study said. iStockphoto.com hide caption

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Red wine's rep as a fountain of youth is facing a challenge. iStockphoto.com hide caption

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Tennessee women's basketball coach Pat Summitt sits with her dog at her home in Knoxville, Tenn. Summitt plans to coach "as long as the good Lord is willing" despite recently being diagnosed with early onset dementia. Debby Jennings/AP/University of Tennessee hide caption

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Larry Holzman does a series of eccentric wrist exercises using a rubber bar called the Thera-Band FlexBar. Maggie Starbard/NPR hide caption

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Volunteer John Kelley (left) leads an exercise class at a senior center in Oklahoma on Monday. Centers such as these offer seniors a cool place to go during heat waves. Sue Ogrocki/AP hide caption

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A study found that women's bones didn't benefit from consuming more than 750 milligrams of calcium a day. Justin Sullivan/Getty Images hide caption

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