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, ...

CrossFit's cult-like following can feel a little, um, weird sometimes. It's strange for people to be so in love with something that most people avoid at all costs -- exercise. Especially intense, ...

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 ...