Originally posted by BigLickMountee:
chronic use has been shown to lower testosterone levels and cause vascular disease (just like cigarettes). Libido is tied to testosterone and erections are intimately (pardon the pun) related to blood flow into and out of the penis involving nitric oxide .(Viagra works by getting more nitric oxide in the penis to vasodilate).
low testosterone eventually will contribute to man boobs too. So, many stoners need a bra, not solely to getting high because of the obesity rate, but it does contribute. Just something to consider, I guess.