Short people:
Boys who smoke cannabis before puberty could be stunting their growth by more than four inches, a new study suggests.
I was always told coffee did that, too. :)
Yep, I think that's a true study. Messes up cognitive development, too - in children and young adolescents.
But everything has pros and cons. You want kids or teens drinking? If they can't, should you be barred? Yet, why not? Comparing the damage between weed and alcohol is a joke.