Impact of Marijuana on Mental Illness in Adolescents


Cannabis use in adolescence and risk of psychosis: Are there factors that moderate this relationship? A systematic review and meta-analysis – February 2021

Does Marijuana Cause Schizophrenia? by Dr. Erik Messamore – Feb. 2021

Is Marijuana Good for Depression? by Dr. Erik Messamore – Jan. 2021


An Open Letter to Anyone Struggling with Addiction – 2020

As marijuana-induced psychosis rises, parents say treatment for young people hard to find – Jan. 2020

Association Between Cannabis Use and Schizophrenia: Causative or Curative? A Systematic Review – July 2020

Association of High-Potency Cannabis Use With Mental Health and Substance Use in Adolescence – May 2020

Cannabis / Marijuana (and other street drugs) Have Been Linked to Significant Increases in a Person’s Risk for Schizophrenia – summary updated 2020

Cannabis Probably Does Cause Schizophrenia – 2020

Cannabis use among U.S. adolescents in the era of marijuana legalization – Feb. 2020

Cannabis Use Disorder: no accepted medical purpose and a high potential for abuse – Jun. 2020

Causality of marijuana and schizophrenia video – Feb. 2020

Co-occurrence across time and space of drug- and cannabinoid- exposure and adverse mental health outcomes in the National Survey of Drug Use and Health – Dec 2020

‘Dabbing’ concentrated THC is troubling new trend among teens – Feb. 2020

Heavy Pot Use Linked to Mental Problems Even After Quitting – May 2020

Management of Psychosis in the Context of Cannabis Use: Beyond the Chicken or the Egg Question – June 2020

Marijuana & Mental Health – Smart Approaches to Marijuana – 2020

Marijuana, but not alcohol, use frequency associated with greater loneliness, psychological distress, and less flourishing among young adults – Nov. 2020

Mental Health and Substance Use Disorders – Apr. 2020

New Approach to Lessen Negative Symptoms in Schizophrenia is Based on Brain Circuit Discovery – Jan. 2020

Novel Insights on Cannabis and Psychosis – July 2020

Our very long story: marijuana is addictive – Feb. 2020

Persistent Cannabis Use Among Young Adults with Early Psychosis Receiving Coordinated Specialty Care in the United States – Marino, May 2020

Single joint linked with temporary psychiatric symptoms, review finds – Mar. 2020

The Marijuana Market As An “Essential Service” Threatens Everyone – Apr. 2020

The perils of recreational marijuana use: relationships with mental health among emergency department patients – June 2020

Trump Takes a Stand for the Mentally Ill – Feb. 2020

Users of High-Potency Cannabis Four Times More Likely to Report Associated Problems – Science Daily May 2020

What to Do If You Suspect Your Teen Has a Mental Illness Apr. 2020

Will Legalization and Commercialization of Cannabis Use Increase the Incidence and Prevalence of Psychosis? Murray & Hall, April 2020


Association of Cannabis Use in Adolescence and Risk of Depression, Anxiety, and Suicidality in Young Adulthood – Feb. 2019

Before Maryland Legalizes Marijuana, It Should Consider This: Pot is Linked to Psychosis – Miller April 2019

Cannabis and Psychosis: Are We any Closer to Understanding the Relationship? Jun. 2019

Cannabis-related psychosis, addiction, ER visits: For young users, marijuana can be a dangerous game – Dec. 2019

Daily Marijuana Use and Highly Potent Weed Linked To Psychosis – Mar. 2019

Even a Little Marijuana May Change Teen Brain, Study Finds – January 2019

Grey Matter Volume Differences Associated with Extremely Low Levels of Cannabis Use in Adolescence – March 2019

Is Marijuana Linked to Psychosis, Schizophrenia? It’s Contentious, but Doctors, Feds Say Yes – Dec. 2019

Legalized Cannabis in Colorado Emergency Departments: A Cautionary Review of Negative Health and Safety Effects – Jul. 2019

Psychotic disorders hospitalizations associated with cannabis abuse or dependence: A nationwide big data analysis – October 2019

Teen marijuana vaping is on the rise, a new report says, threatening to ‘undo years of progress’ – Dec. 2019

Tell Your Children: Marijuana, Mental Illness, and Violence – Jan. 2019

The Contribution of Cannabis Use to Variation in the Incidence of Psychotic Disorder Across Europe (EU-GEI): a Multicentre Case-Control StudyMarta Di Forti, The Lancet, May 2019

Transition of Substance-Induced, Brief, and Atypical Psychoses to Schizophrenia: A Systematic Review and Meta-analysis – Oct. 2019


Acute Mental Health Symptoms in Adolescent Marijuana Users -Dec. 2018

Adolescent cannabis use, baseline prodromal symptoms and the risk of psychosis – Jan. 2018. Adolescent cannabis use is associated with increased risk of psychosis even after adjustment for baseline prodromal symptoms, parental psychosis and other substance use (in as little as 5 times using).

Joe Rogan – Can Drugs Cause Schizophrenia? – May 2018

Cannabis and Psychosis – what do we know and what should we do? Robin Murray – 2018

The Problem with the Current High Potency THC Marijuana from the Perspective of an Addiction Psychiatrist – December 2018

2017 and later

Association of Cannabis Use with Hospital Admission and Antipsychotic Treatment Failure in First Episode Psychosis: an Observational Study – Patel, Oct. 2016

A Synopsis of the Numerous Studies Supporting an Causal Relationship between Marijuana Use and The Chronic Psychotic Disorder Schizophrenia – 2015

Cannabis and schizophrenia. A longitudinal study of Swedish conscripts – Dec. 1987

Cannabis-Induced Psychosis: A Review – July 2017

Cannabis users are 5.2 times as likely to develop Schizophrenia – Nov. 2016

Familial Predisposition for Psychiatric Disorder – Nov. 2008

Long lasting effects of chronic heavy cannabis abuse – Jun. 2017

Marijuana Addictive Disorders: DSM-5 Substance-Related Disorders – Journal of Addiction Research & Therapy – Jan. 2017

Risks of Increasingly potent Cannabis: The joint effects of potency and frequency – 2017

Schizophrenia – latest research from the Brain and Behavior Foundation

Seize the Awkward – talking to your friend about mental health

Significant link between cannabis use and onset of mania symptoms – Feb. 2015

The Maturing Brain and Schizophrenia – Dec. 2005

The psychotomimetic effects of intravenous delta-9-tetrahydrocannabinol in healthy individuals: implications for psychosis – Aug. 2004