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 ...

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You'll need to understand more about the muscles and how you'll use them during each exercise variation to produce the results you're hoping for to build a pair of big, strong arms. There's nothing ...

Ask someone to flex, and chances are they’ll strike the classic double-biceps pose. Ask them what the best biceps exercise is, and you’ll probably hear “dumbbell curl.” That's not a bad guess, ...

There's nothing like a big-time biceps flex—and to achieve a muscle peak you can be proud of, you'll need these biceps exercises. Consider this your permission to flex. What You Need to Know About ...