Add Yahoo as a preferred source to see more of our stories on Google. Man performing dumbbell overhead triceps extension in mirror. Take a look around at your fellow gym-goers next time you visit the ...

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 ...

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 ...

Attach a rope handle to the high pulley of a cable station. Grab the handle and turn away from the machine with your hands at shoulder height. Fully extend your arms forwards and in front of your head ...

Good things always come in threes: fairy godmothers, parts of a combo meal, boy bands made of brothers (Hi Jonas and Hansen!). So it’s no surprise the most eye-popping muscle in your arms is, in fact, ...

Strong triceps support everyday movements like pushing up from a chair and can improve arm definition. Five at-home exercises include bench dips, one-arm overhead extensions, kickbacks, skullcrushers, ...

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 ...