According to an immunologist over at Duke University Medical Center in Durham, N.C it is likely that your appendix is useful and may even still serve a purpose. It was once thought that the appendix was just a useless sack left over from our ancestors. Now some scientists are changeing their tunes and are conducting radical studies showing that the appendix is not only useful, but may even be able to prevent disease. Now head on over to Yahoo and check out the full article to learn more about the newly found usefulness of the appendix.