Trainers share their favorite ways to loosen up.

Add Yahoo as a preferred source to see more of our stories on Google. Go to any search engine and type, "How to stretch your hamstrings." How many different answers pop up? How many stretches have you ...

Add Yahoo as a preferred source to see more of our stories on Google. Natalia Perez-Segnini is a NASM-certified personal trainer, a yoga instructor, a breathwork practitioner and a trauma-informed ...

THE STATE OF your hamstrings determines more about your body’s condition than you might expect. Tightness in your hamstrings can cause back pain, hip mobility, and even bad posture. “Tight hamstrings ...

Tight hamstrings can feel like a stiffness or lack of mobility in the back of your thigh. Running and lifting weights can cause hamstring injuries so it's important to stretch before. Massage and ...

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. Are your hamstrings ...

Stress can leave your muscles feeling tight and needing a stretch. Challenging workouts can, too. Long, hard runs? Yep. Heck, just sitting at your desk or driving for a long time can leave you tight!

Tight hamstrings occur when one or all three of the muscles at the back of your thigh become shortened due to prolonged sitting, overtraining or sudden increase in workout workout intensity, certain ...