Add Yahoo as a preferred source to see more of our stories on Google. Without realizing it, you rely on your triceps to do many things on a regular basis—lifting bags, writing, moving furniture, ...

Don’t let a packed schedule stop your progress.

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 ...

The best exercises for strength and muscle after 40, 50, or 60 are progressive, repeatable, scalable and unfussy. If you didn ...

Tricep dips, also sometimes just called dips, are a popular exercise because you don't necessarily need to do them in a gym. They work several key arm and shoulder muscles in addition to your chest ...

The triceps extension targets all three heads for sleeve-filling size and lockout strength without taxing your shoulders or chest. It’s not just bro‑lore either. In a 12‑week study on trained adults, ...

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 ...

Getting older doesn't have to mean getting weaker—but it does require paying attention. I've worked in fitness my entire adult life. As a group exercise instructor, then a personal trainer, and now ...