Natural Bodybuilders Swear by This Science-Backed Arm Workout for Explosive Growth originally appeared on Men's Fitness. If you want big arms that turn heads (and who doesn't?), Jeff Nippard’s science ...

Mike Israetel trained with one of the top bodybuilders in the world, Natalie Hays. During the workout, he put her onto a couple of upper body supersets to remember. Hays is a four-time World Champion ...