From your shoulders to your fingers, your arms have many moving parts: joints, bones, muscles, nerves, tendons and ligaments. Mysterious arm pain that seemingly comes out of nowhere can arise if any ...

A tingling or numbness in your left arm could be a sign of a heart attack or something less severe. Here's how to spot the warning signs.

Unexplained muscle pain in the arms and legs may be the result of benign issues. Or it may point to a more serious underlying condition, such as fibromyalgia, infection, or thyroid issues. Muscle pain ...

New research reveals that the human brain contains a built-in pain map that activates in different regions when relieving ...