: Why did we prepare this supplement and why it is about interdisciplinary public health issues? It is rather difficult question, but with a simple answer. Neurology field, neuroendocrinology field and many other areas of medicine are actually very important partners for public health professionals. Public health promotes and protects the health of people and the communities where they live, learn, work and play. While doctors treat people who are sick, those of us working in public health try to prevent people from getting sick or injured in the first place.