lol!
I suspect that is the problem with many of us. I know the good people at Mars, Inc. are putting a fair amount of money into scientific research to prove that very thing.
In the meantime, all we can do is try our best to keep our daily chocolate intake at a healthy level.
For, after all, if I've learned anything over the years, it's that life is like a box of chocolates... without chocolate, it's empty!