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 you've read our round-up of tricep exercises, you'll know that the tricep muscle makes up 60% of your upper arm. It's a huge proportion, and while all the exercises included in the aforementioned ...

Dips are simple, they're effective, they look cool and they pack on slabs of muscle. So why aren’t we doing more of the king of tricep exercises? Tricep dips, bodyweight, bench dips — whatever you ...