What seemed like a burden can become a gift. iStockphoto hide caption

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Autistic Kids At Risk Of Wandering: How To Keep Them Safe
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In epilepsy, the normal behavior of brain neurons is disturbed. The drug valproic acid appears to help the brain replenish a key chemical, preventing seizures. David Mack/Science Source hide caption

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Taking care of a family member can be a life-extending experience, a study finds. iStockphoto.com hide caption

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With osteoarthritis, knees become swollen and stiff, and cartilage can degenerate. Ted Kinsman/Science Source hide caption

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Exercise May Help Knees More Than Glucosamine And Chondroitin
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Sen. Mark Kirk, R-Ill., gets help entering the Capitol from Vice President Joe Biden (right) in January 2013, one year after suffering a stroke at age 52. Jewel Samad/AFP/Getty Images hide caption

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Does a glass or two of wine during pregnancy really increase the child's health risks? Epigenetics may help scientists figure that out. Katherine Streeter for NPR hide caption

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How A Pregnant Woman's Choices Could Shape A Child's Health
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Niels Tietze leads a group of veterans of the wars in Afghanistan and Iraq up the Snake Dike route on the western wall of Yosemite National Park's Half Dome. David P. Gilkey/NPR hide caption

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For Wounded Vets, Climbing Half Dome Only Half The Mission
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Lauren Henderson and her service dog, Phoebe, in Los Angeles. Henderson says she's seeing more dogs in vests that don't appear to be legitimate service dogs. Lisa Napoli/KCRW hide caption

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Four-Legged Impostors Give Service Dog Owners Pause
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Devon Walker smiles with his teammates after the school's home opener in New Orleans. A former team captain, Walker was paralyzed from the waist down during a tackle last September. Courtesy of Tulane Athletics hide caption

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Back At School, Injured Player Fights On After Fateful Tackle
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Members of the Bay Area Association of Disabled Sailors sail every weekend near San Francisco's Pier 40. The all-volunteer group serves people with a range of physical, developmental and mental disabilities. Emily Green for NPR hide caption

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Sailors With Disabilities Find Freedom On The Water
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