We have done studies on psychedelics and mental health disorders, especially schizophrenia. Most of them say they don't cause mental illness but can allow the s

We have done studies on psychedelics and mental health disorders, especially schizophrenia. Most of them say they don't cause mental illness but can allow the symptoms to express themselves, or atleast be noticeable, a bit earlier. Part of the problem is many mental illnesses don't show heavy symptoms until people's early 20s, the same time period when someone is likely to try a psychedelic drug for the first time. So someone is schizophrenic, doesn't know it, tries acid or shrooms in college which allows the symptoms to express themselves to noticeable levels for the first time, now they think acid caused their schizophrenia. But in reality they were likely only a year or a stressful event away from the same thing happening. And once you notice the symptoms for the first time, it becomes easier to identify those symptoms later even if in the past they would have been small enough to easily ignore.