Get stronger, leaner arms in just 10 minutes! 💪 This quick dumbbell arm workout targets your biceps, triceps, and shoulders for a full upper-body burn. Perfect for home workouts or the gym—no ...

There’s no doubt that push-ups are one of the top bodyweight exercises you can do for your upper body. But you can strengthen your arms and shoulders without having to hit the floor using this ...

If you want to improve your arm swing, posture and running efficiency, you’ll need to build strong arms – and the good news is that you don’t have to dedicate a full gym session to training them. In ...

"Sometimes pressing play and just starting is the hardest part," says fitness instructor Tanner Courtad in this total-body workout video. "But what you'll always find out is that you build momentum, ...

Despite being the largest muscles in your arms, your triceps are generally not the first muscles you think of when you think about training this body part. That title goes to the big, bad biceps.

Meredith Dietz is Lifehacker’s Senior Staff Writer. She earned her bachelor’s degree in English and Communications from Northeastern University, where she graduated as valedictorian of her college.