
Dr. Thomas O’Connor is a Testosteronology Founder & Men's Health Physician.
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Dr. Thomas O’Connor is a board-certified physician and founder of Testosteronology®, a health education platform focused on testosterone therapy, anabolic steroid use, and men's health. He produces educational content including videos, livestreams, Q&A sessions, interviews, and clinical reviews covering topics such as cardiovascular health, metabolic function, hormone therapy, and harm reduction. He collaborates with the film GYM RAT as its official health education partner, participates in panel discussions, and leads the Testosteronology Society® which offers clinician training and certification programs.
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