The Liftware device, shown here as an early prototype (left) and the final design, starts up automatically when it's lifted from the table. There's no "on" switch to fumble with. Ina Jaffe/NPR hide caption

itoggle caption Ina Jaffe/NPR

With their matching blue wigs, the dancers in the Palm Springs Follies chorus (they're called the "long-legged lovelies") give a whole new meaning to the cliche "blue-haired old ladies." Ina Jaffe/NPR hide caption

itoggle caption Ina Jaffe/NPR

More and more older adults are becoming entrepreneurs instead of retiring, like Paul Tasner of Pulpworks, who spoke at the 2013 Global Social Venture Competition in California. Courtesy of Kevin Warnock hide caption

itoggle caption Courtesy of Kevin Warnock

Manuel "Manny" Aguirre, 80, has been mixing cocktails at Musso and Frank Grill in Los Angeles for more than two decades. He works part time and could retire — but he doesn't want to. Courtesy of Musso and Frank Grill hide caption

itoggle caption Courtesy of Musso and Frank Grill

Man signing a contract in his attorney's office. Lisa F. Young/iStockPhoto hide caption

itoggle caption Lisa F. Young/iStockPhoto

Failures in ordinary care are causing widespread harm that's sometimes serious, inspectors say. iStockphoto hide caption

itoggle caption iStockphoto

The fastest-growing part of the online dating market is people over 50, according the CEO of the Match Group. Carmen Winant/Getty Images hide caption

itoggle caption Carmen Winant/Getty Images

The divorce rate for Americans over 50 doubled between 1990 and 2010. Alexander Abramov/iStockphoto hide caption

itoggle caption Alexander Abramov/iStockphoto