"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Situps and crunches aren't the only (or even the best!) way to strengthen and define your abs. For proof, ...

Add Yahoo as a preferred source to see more of our stories on Google. Sometimes it’s all in the design. One trip to the gym and you’ll quickly learn that weights come in many forms. The kettlebell, ...

When you think of core exercises, your mind might go straight to bodyweight crunches or situps. But your core is so much more than just your abs! It includes all of the muscles from your ribs to your ...

Like a barbell or dumbbell, there are plenty of kettlebell-specific movements out there to help you get the most out of this effective workout gear. From the simple to the intricate, you can construct ...

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. Bruising your forearm ...

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Sometimes it’s all in the design. One trip to the gym and you’ll quickly learn that weights come in many forms. The kettlebell, with its handle and bottom-heavy design, begs to be used for dynamic and ...