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 ...

Your hamstrings are a group of three muscles, biceps femoris, semitendinosus, and semimembranosus, located at the back of the thigh. It plays a crucial role in hip extension, knee flexion, and ...

Former four-time Mr. Olympia Jay Cutler broke down his latest leg workout that focused on the pump and pre-exhausting the ...

You may think having flexible hamstrings is a badge of honor for outdoor athletes. And while you’re not exactly wrong, not everyone needs to have Cirque du Soleil-level stretching abilities to succeed ...

Dana Santas, known as the “Mobility Maker,” is a certified strength and conditioning specialist and mind-body coach in professional sports. She is also the author of “Practical Solutions for Back Pain ...