
Teen Cannabis Use Triggers Elevated Mental-Health Risks, Study Finds
A Johns Hopkins-led study analyzing nearly 700,000 U.S. medical records finds teens with cannabis use disorder have higher risks of schizophrenia, recurrent major depression, and anxiety than peers with other substances, while adults with cannabis use disorder show lower relative psychiatric risk. The researchers propose that cannabis may accelerate onset of mental illness in vulnerable youths or reveal preexisting predispositions, but the results do not prove causation. The findings highlight age-dependent effects and caution against teen use of cannabis, especially high-potency varieties.












