Recent studies[1][2] have shown that psychosis only may be a risk if you already are prone to it. [1] http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=Sh

Recent studies[1][2] have shown that psychosis only may be a risk if you already are prone to it. [1] http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=ShowDetailView&TermToSearch=17349865&ordinalpos=185&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum http://www.ncbi.nlm.nih.gov/sites/entrez?Db=pubmed&Cmd=S... [2] http://www.unboundmedicine.com/medline/ebm/record/16936704/abstract/An_Experimental_Study_of_Catechol_O_Methyltransferase_Val_158_Met_Moderation_of_Delta_9_Tetrahydrocannabinol_Induced_Effects_on_Psychosis_and_Cognition http://www.unboundmedicine.com/medline/ebm/record/16936704/a...