i heard you grow hair on the palms of your hands?
seriously though, i dont doubt too much masturbating can be a bad thing, sometimes i find myself cumming 2+ times in a day, theres no doubt the amoutn of cum/semen whatever u wana call it, that comes out is alot less, and the hardness of the erection , and size is not as big or hard than if you do it say every other day, if your used to beatin off every day, try to do it every other day, defintely harder, bigger (back to the harder thing), more cum, no doubt about it