He has distinguished himself in the field of Anti-Aging Medicine by developing two new treatment protocols for Testosterone Replacement Therapy. Commanding a substantial Internet following, Dr. Crisler founded the first Internet Forum on HRT for men in the world moderated by a physician. He now enjoys training fellow physicians in this area of medicine, and is known as a dynamic and informative speaker. Dr. Crisler recently delivered the very first lecture ever on male hormone replacement therapy before the Michigan Osteopathic Association at their 2004 Annual Convention.