Experts weigh in on whether cardio kills your gains, how much protein you need, and the right mix of sweating and lifting to meet your goals.

Grab a chair, have a seat and start exercising for stronger abs. That's what fitness trainer Rhonda Murphy has us doing in this week's "Workout!" ...

Discover the intense workout regimens behind the bodies of Hollywood’s top stars like Sara Sampaio, Alessandra Ambrosio, Dave ...