Wisconsin state Sen. Fred Risser at the state Capitol. Narayan Mahon for NPR hide caption

itoggle caption Narayan Mahon for NPR

The recession put a dent in Sims-Wood's savings, and she expects she'll have to stay in the workforce "forever." Gabriella Demczuk/NPR hide caption

itoggle caption Gabriella Demczuk/NPR

John David, 73, teaches an exercise class called PACE to seniors at the 92nd Street Y in New York City. The former TV producer says he has finally found his true calling. Shiho Fukada for NPR hide caption

itoggle caption Shiho Fukada for NPR