Dr. John A. Robinson is a Board Certified Naturopathic Medical Doctor practicing medicine in Scottsdale, Arizona. He specializes in endocrinology and age management medicine including sex hormone management, thyroid disease and autoimmunity, insulin resistance and diabetes, adrenal disorders and stress management, and gastrointestinal issues. Since 2006 he has served thousands of patients with his unique and comprehensive approach to Bioidentical Hormone Replacement Therapy utilizing subcutaneous hormone pellets within the context of a comprehensive hormonal approach. He has developed a unique approach to thyroid disease diagnosis and management called ThyroZone, that includes the use of Low Dose Naltrexone (LDN) as a therapeutic tool for autoimmune management. He is the author of the book The Hormone Zone: Navigating Metabolism Through Whole Health Transformation, where he explores a comprehensive hormonal approach to health and metabolism. His newest book, ThyroZone(tm), explores his unique thyroid approach in more detail.