You might be surprised how much you're already hitting this valuable muscle group. Here's how to avoid going overboard.

WHAT'S YOUR GO-TO arm day exercise? There's a good chance your answer is the dumbbell biceps curl. That's a great answer—we've talked at length about the move and how valuable it can be for your ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." EVEN IF YOU'RE not a bodybuilder with 20-plus-inch arms, we’re willing to bet that biceps curls are ...

Proper form is essential for preventing injury. In this episode of The Right Way, a pro trainer shows us how to do tricep dips Though the equipment-free move may look simple, it also happens to be ...

Build bigger, stronger arms in less time with this biceps and triceps superset workout. It’s going to hurt, but it’ll be ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." BUILDING BIG ARMS is about more than just one move—and more than one muscle. The dumbbell biceps curl is ...

Pop quiz! What’s the biggest muscle in your body? That’s right, it’s the gluteus maximus, one of the three glute muscles in your butt. It’s not just there to look pretty—it’s a workhorse that it pays ...

Arm fat can be particularly frustrating. It’s often one of the last areas to respond to diet and exercise, and the first place to show when we gain weight. Whether you’re concerned about upper arm ...