Click to viewKeeling trains by running in the hallways of her apartment building. She also runs on treadmills, lifts weights, and rides an exercise bike. She stands at 4'6" and tells the Daily News: "I used to be 4'8", but you shrink as you get older." In an interview with ABC News, Keeling says that she "feels like a puppy every day." She also reveals that she didn't start running until she was 67 years old. The lesson? It's absolutely never too late.