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

You don’t need a pricey gym membership or a set of weights to start building upper-body strength—just your own body. Whether you're tight on time, space, or equipment, bodyweight arm exercises offer a ...

In TODAY.com's Expert Tip of the Day, a trainer shares her favorite exercise for toning and tightening the arms.

Bulging biceps and strong, toned triceps provide both aesthetic and functional benefits. Bigger, more powerful arms are also a key part of the desirable, muscular, masculine upper body shape known as ...