The answer seems to be simple. Statins, as well as lowering cholesterol, have a significant anti-inflammatory effect on the body.
Most of the issues already mentioned have a significant tie into inflammation inside the body. Inflammation has marked negative effects on the body, and it's a significant factor in whether you're going to suffer from issues like heart attacks.
Because of this, it's likely that the fact that statins are a strong anti-inflammatory is a highly probable reason for their effects in preventing coronary problems.
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