Does marijuana use really cause psychotic disorders?

1/20/19–Scientists with a combined 70-plus years of drug education and research on psychoactive substances believe author Alex Berenson’s assertions in his new book about marijuana causing psychotic disorders leading to violent crimes are misinformed and reckless. According to Carl L. Hart, chairman and Ziff professor of psychology and psychiatry at Columbia University, evidence from research indicates that aggression and violence are highly unlikely outcomes of marijuana use. Read