"The vast majority of young people who use marijuana don't develop psychosis. And so far, no one's been able to prove that smoking marijuana actually causes psychotic disorders like schizophrenia, but the new research adds to "growing evidence" that it does, at least in some people, said Dr. Michael T. Compton at George Washington University Medical Center in Washington, DC, who worked on the study.
A number of studies had already suggested that people develop schizophrenia at a younger age if they've been using pot - even if they weren't heavy users -- but not all researchers agreed."
The researchers did not look at whether family history of psychosis played a role in determining who was most vulnerable to marijuana's apparent early-triggering effect.
Are there some kids who are more at risk of psychosis from smoking pot than others? "I'm sure there are," Large said. Kids with a family history of psychosis, or those with some psychotic symptoms but not full-blown schizophrenia are at particular risk, he said. But also at risk are kids who are struggling, not doing well at school or living in bad situations at home.
I love how almost every 'study' that turns up evidence against marijuana has huge oversights, of course "some people" are going to develop adverse effects from smoking marijuana. Some people also develop alcoholism, some people also develop allergies to peanuts. Ignoring family histories in a study about psychotic behaviors is like ignoring whether or not people smoked cigarettes when trying to figure out who's most likely to develop lung cancer, and DURR of course kids in shitty home situations with extra stress from doing poorly at school are more likely to develop mental problems. That's like saying kids trying to cross a busy highway wearing all black at night are more likely to get hit by a truck.
Worst study I've seen in quite some time now.