I believe since the 80's it's been well-established that people with a predisposition to schizophrenia have a greater risk to break out into psychosis when taki

I believe since the 80's it's been well-established that people with a predisposition to schizophrenia have a greater risk to break out into psychosis when taking hallucinogenics. Even with today's clinical trials, they will exclude those with a family history of psychosis/schizophrenia.