The first marathon-runner was a Greek messenger who ran 26 miles to announce a Greek victory in the Trojan War before dropping dead in his tracks. A cardiologist living in Kansas City has amassed research and data suggesting there might have been a reason for that. Extreme cardiovascular activity for prolonged periods of time done rigorously and continuously over a lifetime doesn't correlate with a long lifespan, he says. And the heart has a lot to do with that.
- James O'Keefe, director of preventive cardiology at St. Luke's Mid-America Heart Institute , professor, UMKC School of Medicine