Add Yahoo as a preferred source to see more of our stories on Google. Looking to reap more gains from your arm day workouts? Upgrade your overhead triceps extension so you can pump up the big muscles ...

A kinesiologist shares six standing exercises that target underarm jiggle and rebuild tricep strength after 60.

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 ...

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

We are in the heart of the summer, and to say it’s been warm lately is an understatement. Tank tops, shorts and sundresses are definitely the go-to attire when temps are nearing three digits! That ...

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A CPT shares five home moves that address arm jiggle and rebuild upper-body strength after age 60.

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 ...

The name skull crushers isn’t too enticing—I get it—but it's a great triceps-toning move, and not as scary as it sounds. While it might be a little more advanced than other dumbbell exercises ...