We laugh at the elderly for thinking that girdles and jazzercise will keep them young forever. Even I laugh. The oldest, most Russian man in the world goes to my gym in the mornings. He wears an adidas-esque track suit, gold chains, and a fur hat while he walks on the treadmill. He takes off the hat when he goes upstairs and lifts tiny yellow 2 pound weights for about 10 minutes. But he likes it, he’s there every morning, he knows everyone, and he’s fit, and that’s what matters. There are a few tricks those fab 50+ers can teach us about getting fit, and being happier while doing it.