When you have no control group, as in the case of our one-mouse experiments in health and longevity, it is hard to know how a control group might have fared. Nonetheless, I was persuaded of the reasonableness of taking Longevinex products 13 years ago and have taken them ever since, most recently the Advantage formulation. By my age, my father had had three heart attacks, a heart transplant, and was two years from dying of another heart attack in his transplanted heart. My habits are also “better” than his, but my blood pressure is fine, and I have had no cardiac adventures to date. I also look fifteen years younger than my age peers. I believe I’ll continue with the Longevinex products.