The National Center for Health Statistics reported in May that a quarter of all Americans get virtually no exercise. Only 19 percent engage in a "high" level of physical activity.
Heart disease is the No. 1 killer in the United States and other industrialized countries, killing more than 700,000 Americans a year.
81% of the population are slowly killing themselves. Compare this to traffic fatalities (a mole hill in comparison) and we can see where we can best spend our efforts to save the most lives.