"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Nordic curls are a bit of a gymgoer’s party trick. As you lower the backside of your body backwards ...

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. For strong, powerful ...

THE HAMSTRINGS, ONE of the major muscle groups in the legs, are invaluable for the types of movements performed by high-level athletes and everyday exercisers alike. Your hamstrings are essential for ...

You might assume that you have to lift heavy weight to get stronger, but research shows that's not necessarily the case. You can make real strides using just your own body weight. NPR's Will Stone ...