Men under 70 with heart disease live longer when they take the medication. Their effects on sexual performance are less well understood. Lowering cholesterol improves blood vessel health, which is important for promoting strong erections. But, over 50% of statin users have trouble achieving orgasm. A Korean study found that statin therapy decreased the risk of erectile dysfunction by 25%. So, statins have positive and negative sexual effects. Statins are also linked to fatigue and muscle weakness, which is not good for sexual performance or for bodybuilding. Statins are probably overprescribed for preventing heart disease in otherwise healthy people.