Most people think little about their appendix, and that's only natural, because the function of the appendix has been considered unknown - until now. New research supports that our appendixes might actually be useful after all, and doctors may soon be changing their tune about this neglected organ. The appendix, which looks like a slim tube measuring between two and four inches long, sits in our lower right abdomen. It was originally thought to be vestigial - a part of the body that evolution forgot. Popular belief was that this leftover organ was originally part of a fermenting chamber in...