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 ...

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 ...

Building serious arm size takes more than pressing on repeat. To fill out a sleeve and add lockout strength, put the triceps extension in regular rotation. This classic elbow‑extension move is one of ...

Popular fitness culture has made working out the chest and biceps one of the priorities when one steps into a gym, especially if your training includes using weights. But the triceps, those massive ...

YOU CAN'T BUILD big arms with a narrow focus on just one type of movement. To be more specific, you'll need more than just dumbbell curls to sculpt the type of fully-formed, 3D muscles you're aiming ...