Huge Study Links Teen Marijuana Use to Serious Mental Illness

Source: Science Daily - Top HealthTeens who use cannabis may face a substantially greater risk of developing serious mental health conditions, including psychotic and bipolar disorders, according to a study of more than 463,000 adolescents. Researchers found cannabis use often preceded these diagnoses by nearly two years, strengthening concerns about its long-term effects on developing brains. The results appear in the journal JAMA Health Forum.