"The Godfather of Bodybuilding," Charles Glass, broke down his ultimate workout for building better and bigger glute muscles.

All gym routines have an element of predictability about them, so when a fresh way of lifting weights—like the 6-12-25 ...

Building muscle has huge health benefits, but working out takes time. So what's the least amount of time you can spend at the gym and still see the benefits? Research shows it's less than you'd think.