Have you ever wondered why it hurts when you run? It’s not just in your head – there’s actually a scientific reason for it. The pain is caused by your it band, a strip of connective tissue that runs along the outside of your leg from your hip to your knee. When you run, your it band rubs against the bone, which can cause irritation and inflammation. The good news is that there are things you can do to ease the pain. Stretching and foam rolling are both effective methods for relieving it band pain. You can also try wearing a compression sleeve or special tape to support the area. With a little care, you can keep running pain-free.