Jim Dreeben, 83, took up CrossFit in his 80s and got hooked. He does 100 push-ups and also planks six days a week, and his doctor told him to keep going. Dreeben's active lifestyle includes kayaking, ...

I'm not the biggest fan of upper-body workouts, i.e. push-ups, but I do know that that I've got to do them if I want to have a strong upper body. I don't have the desire to do 50 push-ups first thing ...

Melissa Davison was walking home when she stumbled upon a CrossFit facility. She signed up for a free week's worth of classes, and found why there are some people so wholly devoted to the workout.

Jim Dreeben has always been active, but it wasn't until he was in his 80s that he took up CrossFit. Dreeben, a retiree in Riverhead, New York, now does weekly CrossFit sessions and 100 push-ups six ...