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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 ...

Lying barbell curls are quickly becoming a favorite among fitness enthusiasts who want serious arm gains without complicated equipment. This movement, incredibly simple yet impressively effective, is ...

Whether you're looking for raw strength or pure size, the spider curl provides the constant tension to get you there ...

It may say winter on the calendar, most days you’d think we were well into our spring/summer season. It’s inevitable we’ll soon be breaking out the warm weather clothing, at least the short sleeves ...

Which curl bars are best? Curling is one of the most popular weightlifting exercises for toning the arms and building bigger biceps. While users can perform curling with dumbbells and certain machines ...