With the men's Rugby World Cup in France almost upon us, the risk of injury during the summer warm-up games has been a serious concern for coaches and players. While injuries are a feature of any ...

The three large muscles at the back of your thigh are known as the hamstrings. They join the hip joint to the knee joint. You’ll use your hamstrings a lot in any activity that requires you to bend ...

Symptoms of tight hamstrings can include stiffness and limited mobility. People may also notice cramping, pain, swelling, and bruising. Tight hamstrings are usually due to exercise or other intense ...

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 ...