If toning the back of your arms is a goal, strengthening the triceps can help eliminate that common trouble spot that jiggles when you wave and help you feel more confident. But even more important, ...

The Best—and Worst—Exercises for Tricep Gains, According to a Trainer originally appeared on Men's Fitness. The triceps brachii is a three-headed muscle that plays a critical role in elbow extension, ...

Natural bodybuilder Julian "The Quad Guy" Smith often receives shock and awe surrounding his insanely massive and defined triceps. Julian's sleeve-tearing triceps are almost as impressive as his quads ...

The triceps are the large muscles on the back of the upper arms that are responsible for elbow, shoulder, and forearm movements. Working out your triceps helps to build upper body strength and is an ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Arm day can be one of ...

One of the most important arm muscles is the triceps brachii (the triceps, for short). You use your triceps to extend your arm. It opposes the biceps muscle, which is used to flex the arm. You also ...

When people think of having strong, toned arms, they tend to focus mainly on building biceps—the meatier part of your arms. But the triceps—the three-headed muscles in the back of your arms—are just ...

A tricep dip performed on a workout bench or elevated surface is an excellent entry-level exercise that lays the foundation for more advanced movements, like tricep dips on a dip bar. It's a simple ...

Triceps tendonitis can be caused by overuse, often due to work-related activities or sports, such as throwing a baseball. It can also occur due to a sudden injury to the tendon. There are several ...

Good things always come in threes: fairy godmothers, parts of a combo meal, boy bands made of brothers (Hi Jonas and Hansen!). So it’s no surprise the most eye-popping muscle in your arms is, in fact, ...