"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." TO MAKE THE arm muscle gains you want, you'll need to be intentional. Following a balanced workout split ...

Trainers say a handful of simple exercises—like presses, curls, and push-up variations—effectively build upper-arm strength. These moves hit major muscle groups to boost power and stability. Adding a ...

IF YOU STRIDE through the gym straight to the dumbbell rack, grab the first set of weights you see and immediately get to curling, your biceps-building workout is probably too rushed. To really ...