Nicholas Galitzine shows off his buff He-Man transformation in a behind-the-scenes look at "Masters of the Universe." ...

Lie down on the ground, and drive your lower back into the floor. Hold a light weight plate or dumbbell in both hands. Lift your legs off the floor just a few inches. At the same time, extend your ...

If you're ready to finally build your best six-pack, exercise scientist Milo Wolf ranked the best and worst ab exercises ...