Lisa Uncles, a certified nurse-midwife who's the acting clinical director of the Family Health and Birth Center in Washington, visits a new mother a day after she gave birth. Clients of the center have fewer premature births, low birth weights and cesarean sections as compared with the city's African-American population overall. Andrea Hsu/NPR hide caption

itoggle caption Andrea Hsu/NPR

Katie Benghauser, 57, has been diagnosed with osteopenia and takes Fosamax as treatment to prevent osteoporosis. Coburn Dukehart/NPR hide caption

itoggle caption Coburn Dukehart/NPR

Sam Kass, the assistant White House chef, picks spinach from the garden. Maggie Starbard/NPR hide caption

itoggle caption Maggie Starbard/NPR