After seeing Brie Larson do a one-arm push-up, I was instantly intrigued. Regular push-ups are definitely challenging, but if you've ever wanted to put your upper-body strength to the limit, mastering ...

Stronger triceps means stronger, more toned arms. Try these research-backed exercises to build strength, power, and definition.

Trainers say a handful of simple exercises—like presses, curls, and push-up variations—effectively build upper-arm strength.