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 tend to walk right past the cable machine at the gym, listen up. While you can always work your triceps with a set of dumbbells, the cable machine is an excellent way to isolate your arms and ...

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 — the forgotten halves of the upper arms. You might hear “welcome to the gun show” after a bicep pump, but rarely do you hear a clever quip about the triceps. Nevertheless, they’re ...

Dr. Shields is a physical therapist with a background in English Literature and a passion for healthcare and education. She hopes to combine her clinical expertise with her love of writing, establish ...

Bros give biceps a lot of love, and as somewhat of a bro myself, I’m qualified to make that statement. But when it comes to filling out your sleeves and growing a massive (and strong) set of arms, the ...

When looking to increase muscle mass in the upper body, most people put emphasis on the bicep, performing hundreds of bicep curls in the hope to add volume and definition. That's not the right ...

When people think of having strong, toned arms, they tend to focus mainly on building biceps—the meatier part of your arms. But the triceps—the three-headed muscles in the back of your arms—are just ...

They might feel good when you’re repping them out, but crushing curl after curl after curl just isn’t enough if you’re serious about building sleeve-busting arms. Sorry to be the bearer of bad news, ...

We have more triceps than biceps (they actually make up two thirds of your overall arm). So, if you’re serious about building well rounded arms, you really can’t neglect them. One tricep exercise ...