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Significant proportion of men with erectile dysfunction (ED) has asymptomatic ischemic heart disease (IHD).This is probably because comparatively smaller arteries in the penis (1-2 mm in diameter) become symptomatic before larger coronary arteries (3-4 mm in diameter).Studies have revealed that up to three-quarters of all men with consistent ED can expect to suffer a heart attack or stroke within five years unless their risk factors are modified.