I am a cognitive psychologist turned epidemiologist. I began to research the epidemiology of Type 1 diabetes. In 1983 Dr. Tajima came for training in Pittsburgh. As a result we began a voyage that would lead several of us many times around the world. She said something simple, but had profound ramifications. She said �Ron we do not see much type I diabetes in Tokyo�. We figured it out that the number of children developing diabetes in Tokyo was about the same as Pittsburgh, despite the fact that Tokyo was 20 times larger.