Dr. O'Connor is a board certified Internal Medicine physician and Clinical Instructor of Medicine at the University of Connecticut. He is a published academic researcher and the creator of the personalized healthcare app Testosteronology™. He authored America on Steroids: A Time to Heal and is known as the "Anabolic Doc" due to his skill and experience in caring for men on TRT and anabolic steroids. His expertise in this area has been sought by the world's top media outlets, including Dr. Phil, GQ Magazine, HULU, The New York Times, National Geographic, Generation Iron, Muscle and Fitness, and Vice.

Dr. O'Connor makes videos for education and harm reduction. He covers specific steroids, their side effects, and the impacts androgens have on the heart, kidneys, liver, sexual function, and other bodily systems. He also discusses TRT and provides information for patients and doctors to produce the best health outcomes possible. Please see our playlists page for videos organized by topic.