Can smoking marijuana heavily make you psychotic?
Legitimate studies point to marijuana use as a risk factor for developing schizophrenia. Filmmaker Bruce Mohun made The Downside Of High after his pot-smoking nephew descended into severe mental illness.
A person who uses marijuana regularly is twice as likely to become schizophrenic as someone who doesn’t, with those smoking before the age of 16 being four times as likely. Acknowledgment a link between marijuana and paranoid schizophrenia does not necessarily bolster the argument for prohibition; one could argue that legalizing pot in fact help the problem, by leading to regulation, quality control, standards, and warning labels.