The first chiropractic adjustment was given to someone because they lost their hearing. DD Palmer administered that adjustment to the janitor, after the adjustment his hearing came back. This is his testimony: "I was deaf 17 years and I expected to always remain so, for I had doctored a great deal without any benefit. I had long ago made up my mind to not take any more ear treatments, for it did me no good. Last January Dr. Palmer told me that my deafness came from an inju