THE DANGERS OF MARIJUANA USE TO YOUTH

How Much Marijuana Is Dangerous?

Parents often ask: If my teen tried marijuana once or twice, should I panic? The overall message is clear: when it comes to developing brains, there is no truly safe level of marijuana use. Here’s how medical experts classify marijuana use:

Occasional Use: 1-3 Times Per Month - The equivalent of less than one joint per week

The risks: Still significant for teens. Can impair learning and memory for days to weeks.

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May trigger anxiety attacks or paranoia, especially with today’s high-potency products. While the risk is lower than with heavier use, it’s not zero—especially for teens with a family history of mental illness.

Regular Use: 1-4 Times Per Week The equivalent one to four joints per week

 

The risks: This is where serious problems begin to show. Grades drop. Memory problems become noticeable. The risk of developing addiction increases substantially. Mood and anxiety disorders become more likely. Think of this as the danger zone where occasional experimentation crosses into regular use that changes brain chemistry.

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Heavy Use: Daily or Nearly Every Day The equivalent of three to six joints per day, or 1-3 grams of marijuana daily

 

The risks: This is where we see the most devastating outcomes. Daily users face dramatically increased risks of psychosis and schizophrenia. About 30% will develop marijuana addiction. They may experience severe vomiting episodes (cannabinoid hyperemesis syndrome) that send them to the emergency room. Cognitive problems become severe. This level of use fundamentally changes how the brain works.

 

A critical warning: Todays marijuana is not your parent’s marijuana. In Colorado, THC levels (the part that gets you high) have risen from about 20% before legalization to 30-35% now. Some concentrated products like dabs and waxes contain 70-95% THC. This means it takes less marijuana to reach dangerous levels than it did just a decade ago.

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Addiction Risk - Cannabis is addictive, and it is harder to stop using cannabis if use begins at a young age. Youth who start using marijuana, alcohol, or other drugs may be more likely to continue using substances later in life, establishing patterns of substance dependence.
 

Suicide Risk - Colorado’s data reveals that youth who use cannabis are more likely to have suicidal thoughts or attempt suicide. Studies have found moderate evidence of a statistical association between cannabis use and suicidal ideation, with the risk increasing substantially among heavy cannabis users.

 

Marijuana and Serious Mental Health Conditions: Psychosis and Schizophrenia

The relationship between marijuana use and psychotic disorders represents one of the most concerning findings from Colorado’s post-legalization health surveillance. Multiple data sources have documented a significant increase in psychosis-related healthcare encounters among youth.
 

 

Risk Factors for Psychosis: Key risk factors identified by Colorado researchers include, earlier age of cannabis initiation, use of high-concentration THC products (edibles), greater frequency of use, especially daily use, longer duration of use and genetic predisposition or family history of psychotic disorders

 

Prevention and Education: Talk early and often with youth about the risks of cannabis use, particularly mental health risks, emphasize that

four out of five high school students don’t use cannabis - most teens are not using, educate about the specific risks of high-potency products and concentrates and make clear that brain development continues until age 25, making youth particularly vulnerable.
 

 

Conclusion

As North Carolina considers marijuana legalization, Colorado’s experience provides critical lessons. Comprehensive monitoring, robust prevention education, accessible mental health treatment, and careful regulation of product potency are all essential components of a public health approach to minimize harm to young people. The clear message from Colorado’s health data is that marijuana use poses serious risks to youth mental health, particularly regarding psychotic disorders, schizophrenia, and bipolar disorder. Prevention, early intervention, and education remain our best tools to protect young people from these devastating outcomes.
 

 

Key Data Sources: Colorado Department of Public Health and Environment (CDPHE) - Official state health surveillance data and public health statements, University of Colorado School of Medicine - Research on cannabis-induced psychosis and mental health impacts Peer-reviewed medical literature published in journals including JAMA Psychiatry, Psychological Medicine, Drug and Alcohol Dependence, and The Lancet Psychiatry, National Academies of Sciences, Engineering, and Medicine (NASEM) - Comprehensive reviews of cannabis health effects.