Fitness experts caution against jumping into a difficult routine suggested by Robert F. Kennedy Jr. and Pete Hegseth.

From barbell to wall, this workout blends raw power with body control. CrossFit fans won’t want to miss the grind of ...

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 ...