> There exists cannabis psychosis. As far as I can tell, this is not generally accepted as true. At best, there is a statistical association between cannabis u

> There exists cannabis psychosis. As far as I can tell, this is not generally accepted as true. At best, there is a statistical association between cannabis use in children/young adults and the later development of psychoses. As we all know, "correlation is not causation" - it may well be that those who are more likely to develop psychosis are also more likely to use cannabis and other psychoactive substances to excess.