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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. Curls are the classic ...

The biceps take up a prime position on the front side of the upper arm, making them one of the most visible muscles you can put on display, whether you're wearing a form-fitting t-shirt or no sleeves ...

Add Yahoo as a preferred source to see more of our stories on Google. But if you want to maximise your flex appeal so your arms are the focal point of your physique—even in the winter through a thick ...

If you want to stretch your shirtsleeves, you need to strengthen your biceps and triceps. After all, those two muscles comprise the bulk of your upper arms (your triceps alone accounts for about ...

SCULPTING A SET of strong, muscular arms is high among the top priorities guys have at the gym. The big arms ideal is often thought to be a purely aesthetic pursuit—and for some trainees, that might ...

A U.S. Air Force F-16 Fighting Falcon fighter aircraft assigned to the 18th Aggressor Squadron takes off from Eielson Air Force Base, Alaska, Oct. 6, 2014, during RED FLAG-Alaska 15-1. RF-A is a ...

When it comes to bodily attractiveness, certain muscle groups are considered more desirable than others. In an Evolutionary Psychology study, for instance, more than 500 heterosexual women rated the ...