A lot more than 18 million American men over age 20 have erectile dysfunction, and about 600,000 men age 40 - 70 expertise erectile dysfunction to some degree every single year.Severe erectile dysfunction frequently has much more to do with disease than age itself. In particular, older men are far more most likely to have heart disease, diabetes, and high blood pressure than younger males. Such conditions and some of their treatments are key risk elements for erectile dysfunction.