a_crossfitter
Member
Never seen any studies that indicate this. It's a good theory. Makes sense. Doesn't seem to play out that way. Sleep is the only thing known to cause low testosterone and be a root cause. Lifting weights sure didn't do a thing for my testosterone levels. Now I didn't have issues as a teenager. Seems quite a bit more complex than most of us have dealt with.
Here is a study for you to read:
"Regardless of the age or comorbid conditions, obesity is associated with hypogonadism. The Baltimore Longitudinal Study of Aging found that testosterone decreased by 10 ng/dL per 1-kg/m[SUP]2[/SUP] increase in body mass index.[6]" https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3255409/