You know that something is wrong when you feel a sharp, electric-like pain that zaps across your back. What should you do ...

Discover the specific symptom that ER doctors warn you should never ignore, as it could signal a dangerous condition.

HOUSTON -- It's been termed a "groin" injury, but the full truth about the injury that ended reigning defensive player of the year J.J. Watt's 2015 season a quarter-and-a-half early is much more ...