The study almost certainly was either poorly designed, a statistical abnormality, doesn't show what you think it does, and/or failed to replicate. If it was va

The study almost certainly was either poorly designed, a statistical abnormality, doesn't show what you think it does, and/or failed to replicate. If it was valid for showing what you think it shows I would think my doctor, a urologist who attends medical conferences, would know about it. What my urologist said is also backed up by a book for laypeople I read on men's health written by a urologist named Aaron Spitz called "The Penis Book". I just double checked and it says "Contrary to popular belief, lifting weights does not boost your testosterone in a meaningful way." While I am not a doctor it's my understanding people who do this for a living know individual studies are unreliable. Scott Alexander wrote on his blog "I think a useful epistemic habit is to be very skeptical of individual studies, and skeptical but not too skeptical of large randomized trials, good meta-analyses, and general medical consensus when supported by an evidence base."