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 ...

Fascinating study compares seven commonly prescribed exercises for hamstring strengthening, particularly for a return-to-sport after injury.

Do you ever wake up with tight, stiff legs and wonder why? Or maybe, during yoga class, you find it difficult to touch your heels to the ground in downward-facing dog. Either way, you could probably ...

I’ve been doing a lot of work to strengthen my legs lately; the move that has made the biggest difference is the hamstring ...