General Discussion
In reply to the discussion: Some info is emerging about marijuana use in the young and cardiovascular problems [View all]RainDog
(28,784 posts)Marijuana is not implicated as causation for schizo-affective disorders.
There is some evidence that marijuana may impact age of onset - which is a good argument to note that ANYONE, no matter their age, who is at risk of a schizo-affective disorder (based upon family history) would do well to avoid marijuana - just as those with a history of alcoholism in their family would be cautioned that they may be at greater risk of that condition if they drink alcohol - and a younger age for use would factor into this.
There have been two or three meta analyses that demonstrate no causation - so I think that's pretty firmly established.
Roger Pertwee, the leading pharmacologist in the UK whose speciality is cannabis-based medicine research also went on record, publicly to state there is no causation risk for schizophrenia for the general public - only for those who are already at risk of the same.