Dr. Dan Brennan: Adolescent Cannabis Use and Rising Risk of Mental Health Disorders

Dr. Dan Brennan: Adolescent Cannabis Use and Rising Risk of Mental Health Disorders

You don’t have to be a pediatrician to know teens are facing more significant mental health challenges than ever before. You also don’t have to be a pediatrician to know that cannabis (a.k.a. marijuana, pot, grass, or weed) is the most commonly used drug among teens in the United States. A February 2026 Journal of the American Medical Association (JAMA) Health Forum study found that cannabis use in adolescents and young adults was associated wit…