Abraham Morgentaler, MD, FACS

Abraham Morgentaler, MD, FACS, is an international authority on men’s health and a pioneer in the study and treatment of testosterone deficiency. For more than 30 years, his research has challenged long-held medical beliefs and helped transform the understanding and clinical treatment of testosterone deficiency in men.

His scientific work began with studies of testosterone in lizards and later expanded to humans. His research on testosterone and prostate cancer played an important role in reversing the decades-old belief that testosterone therapy inherently increases prostate cancer risk and helped change medical practice worldwide.

Dr. Morgentaler is the Blavatnik Faculty Fellow in Health and Longevity at Harvard Medical School. He has published more than 200 scientific articles, has an h-index of 60, and his work has appeared in The New England Journal of Medicine, The Lancet, JAMA, and other leading medical journals.

In 1999, he founded Men’s Health Boston, the first comprehensive men’s health center in the United States, and later co-founded the Androgen Society. His contributions to the field have been recognized with the 2024 Grandmaster in Testosterone Award and the 2025 SMSNA Lifetime Achievement Award.

Dr. Morgentaler is the bestselling author of Testosterone for Life, as well as The Truth About Men and Sex and The Viagra Myth. Through T4L Education, he continues to advance physician education in testosterone therapy and men’s health through international congresses and the Masterclass in Testosterone Therapy.