Type 1 diabetes is not a preventable disease, but it's one that can hit at any time in a person's life and forever change the course of it. That's what happened to Marshall McIntyre, a Charlottesville man who was forced to start life over. UVA Orthopedic Trauma Director Dr. David Weiss did part of his residency as a flight surgeon. He was trained for what happens in the Air Force in cases like McIntyre's. “There are certain positions that are considered disqualifying, and how disqualifying depends a little bit on what your job is,” said the doctor.