Have statins been proven to prolong life and lower risk of heart disease?

Yes.: Yes, and the mechanism is not simply from a reduction of cholesterol, but also due to statins' anti-inflammatory properties. Multiple foods and medications with anti-inflammatory properties help lower ones risk of cardiovascular disease.

Time and time again!: Yes indeed! Many trials over the past 20+years have confirmed this. Look up HOPE trial on the internet for example and you will see how strongly these agents appear to benefit those at risk.

STATINS.: You are right. Statins may slow human aging by protetecting against DNA (Telomere) shorting by Telomerase activation and promote healthy aging free of age-related diseases like heart disease,diabetes and cancer. Statins, compared to placebo significantly reduced the risk of heart attack by 39.4%,and stroke by 23.8%. Hope this will answer your question.