The report on the Postmortem toxicological presence of marijuana among Colorado residents younger than 25 years concluded: Marijuana is the #1 substance found in non-natural, non-homicide deaths of those under 25 at 29.2% overall and 26.7% of suicides during the reporting period 2010-2022 Decedents aged 18-20 were more likely to test positive for marijuana than to have no substance present, During the period of the report, the percentage of deaths with marijuana present increased over three-fold: 12.2% in 2010 to 41.4% in 2021


CDC Suicide rate report 2001 – 2021

From 2020 to 2021, suicide rates increased significantly for non-Hispanic American Indian or Alaska Native, Black, and WHITE MALES.

Notes from the Field: Recent Changes in Suicide …

The Morbidity and Mortality Weekly Report (MMWR) Series is prepared by the Centers for Disease Control and Prevention (CDC).

Suicidal Ideation is a side effect of cannabis

Marijuana # 1 Substance found in Teen Suicides in Colorado

The above graph is a screen shot from the Colorado Public Health and Environment report available at this website: Colorado Violent Death Reporting System. To find the above graph, go to the below Colorado website and click on the box that lists “methods, circumstances and toxicology” and then click on the box for 15-19 years olds. The marijuana data will appear.

Important Research on Cannabis and Suicide

The impact of adolescent cannabis use, mood disorder and lack of education on attempted suicide in young adulthood–World Psychiatry. Oct 2014

“Hierarchical logistic regression models showed that adolescent mood disorder and adolescent cannabis use, young adult mood and anxiety disorders, and a low level of education were the most strongly predictive factors for making a suicide attempt…” Click here for full report on cannabis and suicide

Young adult sequelae of adolescent cannabis use: an integrative analysis–Lancet Psychiatry. Sept 2014

“We recorded clear and consistent associations and dose-response relations between the frequency of adolescent cannabis use and all adverse young adult outcomes….substantially increased odds of later cannabis dependence, use of other illicit drugs, and suicide attempt.” Click here for study abstract on adolescent cannabis use.

Major depressive disorder, suicidal thoughts and behaviours, and cannabis involvement in discordant twins: a retrospective cohort study–Lancet Psychiatry Sept 2017

“Early and frequent cannabis use are associated with an increased likelihood of major depressive disorder (MDD) as well as suicidal thoughts and behaviours. We identify associations between aspects of cannabis use, MDD, and suicidal thoughts and behaviours and examine whether such associations persist…” See abstract of this depression and suicide study.

Mortality following treatment for cannabis use disorders: Predictors and causes–Journal of Substance Abuse Treatment. 2013

“The aim of the study was to determine excess mortality associated with cannabis use disorders. Individuals entering treatment for cannabis use disorders were followed by use of Danish registers and standardized mortality ratios (SMRs) estimated. Predictors of different causes of death were determined.” Read more about the study on cannabis use disorders and death.