Experts say the gunman’s brain tissue points to traumatic injury ‘likely’ caused by blasts in the line of duty; the Army disagrees, but is taking steps to limit exposure.

Cardiologists reveal the unexpected symptoms of clogged arteries and underlying heart disease that you should know about. The ...

Women are more likely than men to get a concussion for three reasons, says experts. Plus, a concussion could impact their menstrual cycle and fertility.