Dear Doctors: I’m having radial nerve problems whenever I use my triceps, like pushing the lawn mower, opening doors or pushing up from the recliner. It’s making my thumb and pointer finger very weak.

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 ...

Pain in the triceps most often occurs due to triceps tendonitis. Other possible causes include triceps tears and snapping triceps syndrome. Treatments can depend on the cause. The triceps muscle is ...

THERE ARE TONS of different ways to train your triceps muscles (trust us, we've been known to highlight a few of our favorites), but not every exercise is created equal. While some movements might be ...