Dr. Thomas O'Connor is the first American board-certified internist to focus his medical practice specifically on the health and recovery of individuals who use anabolic steroids and androgens.
He founded Testosteronology®, a dedicated subspecialty of internal medicine that addresses steroid-induced hypogonadism and associated cardiovascular and metabolic concerns.
Dr. O'Connor has over 20 years of experience treating men and women with a history of anabolic steroid, SARM, and PED use. He has been a board-certified MD since 2005 and provides guidance on harm reduction methodologies.
Dr. O'Connor is a clinical instructor at the University of Connecticut School of Medicine and has been featured in various media publications, including Generation Iron, Dr. Phil, National Geographic, The New York Times, Muscle and Fitness, and others.
Dr. O'Connor also co-authored the largest survey on anabolic steroid use, which involved 2,385 men and was published in the peer-reviewed American Journal of Men’s Health. He holds active medical licenses in Connecticut and Florida.
Deca Durabolin (nandrolone) and tren (trenbolone) are two common bulking steroids used by bodybuilders today. In this article, we will discuss the differences in terms of their effects on body composition and how they each impact a user’s health. Deca vs. Tren: Which Steroid Is More Effective? Muscle Tren produces significant lean muscle gains, based […]
Trenbolone is a popular anabolic steroid used by bodybuilders to build muscle and burn fat. Primarily, trenbolone is utilized during bulking cycles to add significant amounts of lean mass without the bloating and water retention of other anabolic-androgenic steroids. As one of the most potent anabolic steroids, trenbolone possesses several benefits. However, trenbolone is also […]
Winstrol (stanozolol) is a commonly used steroid in professional bodybuilding. This is due to it being an oral steroid that produces powerful fat-burning and muscle-building effects. Winstrol’s anabolic effects come without a notable surge in water weight, allowing lean and aesthetic gains instead of bloated-looking muscles. Thus, Winstrol can be used in the summer to […]
Anadrol (oxymetholone) is a bulking steroid taken by some weightlifters wanting to build large amounts of muscle size (hypertrophy) and strength. In our experience, the only steroid that is equal to Anadrol, in terms of anabolism and increasing weight gain, is Dianabol. As Anadrol is commonly utilized in the off-season, the following cycles in this […]
Injectable steroids are well-known for their instant delivery of exogenous testosterone into the bloodstream while preventing excessive strain on the liver. However, not every bodybuilder is fond of needles, and if AAS are incorrectly administered via intramuscular injection, it can result in paralysis or death (1). Furthermore, there are oral steroids that do not pose […]
