Harvard University student Elana Simon introduces President Obama before he spoke at the White House Friday about an initiative to encourage research into more precise medicine. Mandel Ngan/AFP/Getty Images hide caption

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There are more than 160 living Hall of Fame football players. The famous busts of the inductees line the walls in the Pro Football Hall of Fame in Canton, Ohio. JW Ogden/Flickr hide caption

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Lori Lomas, an insurance agent with Feather Financial in Quincy, Calif., has noticed that her clients in San Francisco have many more health carrier options than her mountain neighbors. Pauline Bartolone for KXJZ hide caption

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A hospital bed is draped with a flag after a veteran died in the hospice ward at St. Albans VA in Queens, N.Y. Quil Lawrence/NPR hide caption

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Ultrasound is often used for prenatal screening. It's just one of several prenatal screenings available to pregnant women. iStockphoto hide caption

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The UASK app helps sexually assaulted college students in D.C. access a range of services, from rides to the hospital to phone numbers for counselors. The information is personalized to their school. Another version of the app, ASK, provides the same resources to non-students. Emily Jan/NPR hide caption

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