Exercise greatly cuts a man's risk of dying from heart disease.

Recent finding: Men at high risk for heart disease (due to hypertension, high cholesterol and/or other risk factors) who exercised for 30 minutes four to five days per week reduced their risk of dying from a heart attack or stroke by 50%.

Self-defense: Everyone—especially those who are at risk for heart disease—should perform aerobic exercise, such as walking or swimming, for at least 30 minutes four to five days a week.

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