Aside from exercise & diet (and until nanotech, gene & stem therapy catch up) I believe various compounds exist today that can make a dramatic impact on our health, such as greatly reducing our risk of disease, helping to slow, maintain if not reverse some aspects of aging, and even going as far as enhancing our own physical & mental abilities. In order to keep up with the latest in bioresearch I take several compounds, which in my opinion is based on reasonable scientific studies.