I'll be interested what university did the research studies for this info.
Forearms: This is anecdotal, but some have observed that the best natural bodybuilders have a thick bone structure. When you see a guy with huge forearm muscles rising off relatively small bones, it's a pretty good sign he's been hitting the Vitamin S.
I always thought one of the highest concentration of androgen receptors was in the quads??
Deltoids, Traps: Supersized muscles surrounding the shoulders—trapezius, lats, pectorals, deltoids, biceps and triceps—are a good clue that Mr. Needle has been introduced to Mr. Buttock. Even if the lower body is normal size, upper-body muscles tend to be inflated.