But sometimes the pain lingers long after the danger has passed, becoming chronic. Chronic pain in the form of headaches, joint problems, or full-blown fibromyalgia can radically impact one's life.

Our understanding of pain, and especially chronic pain, is far behind where it should be. We don’t know what causes a person with an injury to develop chronic pain, or why it happens in some ...

Your scrotum is the pouch of skin behind your penis. Most men experience testicular pain at some point. It’s usually mild and disappears without treatment. Some people experience chronic (ongoing), ...