Longterm use of the psychedelics LSD, psilocybin mushrooms, peyote, and mescaline does not cause mental health problems according to a new study. The study shows the use of the psychedelics may even reduce the rate of mental health problems.
Lifetime use of psilocybin or mescaline, and use of LSD in the past year also decreased rates of major psychological distress and the use of psychiatric prescription medications.
21,967 respondents (13.4% weighted) reported lifetime psychedelic use. There were no significant associations between lifetime use of any psychedelics, lifetime use of specific psychedelics (LSD, psilocybin, mescaline, peyote), or past year use of LSD and increased rate of any of the mental health outcomes. Rather, in several cases psychedelic use was associated with lower rate of mental health problems. We did not find use of psychedelics to be an independent risk factor for mental health problems.