Without realizing it, you rely on your triceps to do many things on a regular basis—lifting bags, writing, moving furniture, mowing or raking the lawn, to name a few. But you may not be giving these ...

Think doing the best bicep exercises is enough to get you jacked arms like The Rock? You’re mistaken. Yes, the biceps may give your arms that nice rounded ‘peak’ in the front of your t-shirt, but it's ...

If you think that lots of dramatic, swinging motions mean that you're getting a good workout in, think again. When you're performing basic dumbbell lifts like curls, raises, or kickbacks, efficient ...

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 ...

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, ...

As the old adage goes, good things always come in threes, so it’s no surprise the most eye-popping muscle in your arms is, in fact, three parts that join together. 'There are three heads to the tricep ...

How to: Stand with your knees bent and lean forward slightly, with a dumbbell in each hand. Keeping your back straight, bend your dumbell-holding arm 90 degrees at the elbow so your triceps are ...

If you've read our round-up of tricep exercises, you'll know that the tricep muscle makes up 60% of your upper arm. We know.

If you want defined upper arms, you should definitely train your triceps in addition to your biceps and shoulder muscles. Tricep dips are an excellent exercise to strengthen and shape the arm muscles, ...