impotency =/= sex drive
cannabis has been shown to slow tumour metastasis (movement of a primary tumuor into the blood stream -- i.e. when a random outgrowth of tissue turns into a real danger aka cancer) when the surrounding tissue is saturated with THC. The mechanisms at play in slowing tumour metastasis could also play a role in infertility .. but cause/effect has't been proven, it's just been shown to be correlational
in either case, in most cases the infertility (inability to get a girl pregnant) is reversible by simply smoking less.
Side note .. I had one of the best semesters I've ever had in terms of marks last semester .. smoked the most weed I've ever smoked also
... a correlational study would suggest smoking weed = higher grades haha .. so I guess when you put it that way it doesn't make sense .. kinda like the infertility thing. IMO just a myth moral fags use to rationalize their abstinence from something awesome that has zero negative side effects (IMO)