Half marathon and heart attack: What's the connection? Precautions to follow during long distance running

Running is considered a heart-healthy exercise. However, a 51-year-old man died during a half marathon recently. Cardiologists discuss possible causes.

Half marathon and heart attack: What's the connection? Precautions to follow during long distance running
Running is considered a heart-healthy exercise. However, a 51-year-old man died during a half marathon recently. Cardiologists discuss possible causes.