To which I owe all my good health

Coffee:

Coffee is not usually thought of as health food, but a number of recent studies suggest that it can be a highly beneficial drink. Researchers have found strong evidence that coffee reduces the risk of several serious ailments, including diabetes, heart disease and cirrhosis of the liver.

I like to think of it as an artificial heart. When my blood is not pumping first thing in the AM, we fire up the first pot and all's good.