Medicine: Coronary Curb

Bully for the strenuous life!

I wish to preach, not the doctrine of ignoble ease, but the doctrine of the strenuous life.

—Theodore Roosevelt, 1899

If the experience of Teddy's fellow Harvard alumni is any guide, his advice seems to be right on target. After a long-range study of 16,936 Harvardmen, a leading public health figure last week told an American Heart Association meeting in Miami Beach that the risk of heart attack can be significantly reduced by exercising—but only if that activity is really strenuous and calorie consuming.

In the early 1960s Epidemiologist Ralph Paffenbarger, now at Stanford University, sent questionnaires to some 36,000...

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