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. A new study shows that ...

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Walk into any gym, and you’ll hear conflicting advice about reps. Some trainers swear by heavy weights and low reps. Others advocate for lighter weights and high reps. Your workout buddy might tell ...

Add Yahoo as a preferred source to see more of our stories on Google. The Rock's strength coach shared 3 tips for building muscle, from doing negative reps to trying earthquake bar presses Strength ...