MedicalResearch.com: What is the background for this study? What are the main findings?
Response: This review looked back over 40 years of research on the links between cannabis and psychosis to examine how knowledge has developed on this issue.
The review found that there is sufficient evidence to suggest a dose response relationship exists in the risk for developing a psychosis that would not have happened if the individual had not been exposed to cannabis. Also for people with schizophrenia cannabis exacerbates their symptoms and prolongs recovery.