Trainer, author, and fitness model Kirk Charles, NASM-CPT CES, knows that as you get older, life can get more complicated. But that shouldn’t prevent you from being on top of your game. He’ll help to ...

This cardio workout only involves two exercises, but don’t let that fool you: It’s intense! One of the two exercises is the inchworm, which is way tougher than it looks. "The inchworm works the entire ...