When it comes to adding size to our arms, most people turn their attention to the biceps. Busting out endless curls may feel great and leave you with an impressive pump, but what you should be ...

Pointless, useless, even potentially dangerous—when MH experts use these words to describe an exercise, you know it's not going to be a good use of your time. In this case, the bench dip is the ...

Add Yahoo as a preferred source to see more of our stories on Google. Man doing tricep pushdowns. We have more triceps than biceps (they actually make up two thirds of your overall arm). So, if you’re ...

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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. Arm day can be one of ...