Image Recognition
They considered men to be “growers” if their flaccid penises grew by more than 56% and “showers” if they grew by less than 31%. Showers did tend to have larger flaccid penises in general, though (4.4 inches compared to 3.5 inches). Conversely, growers tended to have a thinner tunica albuginea, the thick fiber layer that surrounds and protects the spongy penile tissue. This difference in the tunica albuginea might mean that growers have more elastic penises, but the authors say more research is needed. But it could also mean that neither type of penis really affects a man’s health, or vice-versa.