Whether you are already following a workout regimen or you are just starting your fitness journey, a challenge can be a fun way to spice things up. As a personal trainer, I have had many clients who ...

Add Yahoo as a preferred source to see more of our stories on Google. Considering a new fitness challenge? Experts say there are benefits — but it's not for everyone. (Getty Creative) If you’re not a ...

Treadmill intervals at a medium effort combined with two sets of bodyweight squats (lower body) and planks (core). Stop the ...