By the late 1930’s Gehrig decided to take a trip to the Mayo Clinic in Rochester, Minnesota. He was examined by one of the hospital’s top doctors, Dr. Harold C. Habein. Habein would later write in unpublished memoirs, “ When he took off his clothes for the examination, the diagnosis was not difficult, there was some wasting of the muscles of his left hand as well as the right. But the most serious observation was the telltale twitchings or fibrillary tremors of numerous muscle groups. I was shocked because I knew what these signs meant-amyotrophic lateral sclerosis.” Gehrig was then sent to Dr. Henry W. Woltman who would ultimately confirm ALS.