Cannabis and Adolescent Mental Health: Understanding the Real Risks
High-potency cannabis concentrates are increasing health risks for adolescents, according to a former Professor of Pediatrics at Sapienza University of Rome. With some synthetic products exceeding 80% THC, the risk of critical hospitalization and long-term psychological disorders is rising as brain development continues into the mid-20s.
Why is cannabis becoming more dangerous for teens?
The composition of illegal substances has shifted toward higher potency. According to the former Sapienza University professor, THC concentrations in seized hashish rose from 7-8% to over 30% in recent years.
New derivatives like “wax” and “miele da sballo” (high-concentration oils and waxes) now reach THC levels above 80%. These products are significantly more powerful than traditional marijuana.
The danger of these concentrates was highlighted recently in the province of Naples. Three teenagers were hospitalized after using a small amount of a substance bought online; one 17-year-old required intensive care in a life-threatening condition.
How does cannabis affect the adolescent brain?
The human brain continues to develop until age 20-25, specifically in regions governing emotion regulation and memory. Early exposure to cannabinoids can interfere with these maturation processes, according to the professor.
Studies published in JAMA Psychiatry and JAMA Health Forum link youth consumption to reduced attention and school difficulties. These sources also identify an increased risk of anxiety, depression, and psychotic disorders, particularly in predisposed individuals.
Risk increases when cannabis is used alongside alcohol and electronic cigarettes. The professor states this combination amplifies psychological distress and the likelihood of addiction.
Is medical cannabis the same as recreational use?
There is a strict distinction between clinical use and recreational consumption. The professor notes that certain cannabinoids are indicated for rare, drug-resistant epilepsy or nausea resulting from chemotherapy that does not respond to conventional treatments.
Evidence remains limited or insufficient for other proposed uses, including sleep disorders, anxiety, and chronic pain. The existence of these medical applications does not eliminate the risks associated with the substance.
A 2026 review titled “The perils of marijuana use in adolescents,” published in the Journal of Addictive Diseases, reports that approximately one in six adolescents who use cannabis risks developing a dependency.
What may happen next?
Future political decisions regarding liberalization could lead to a further reduction in risk perception among youth. If these policies are not accompanied by transparent, science-based information, the banalization of the substance may increase.
Public health strategies may need to shift away from moralistic approaches toward rigorous education to address the rising use of high-THC derivatives.
Frequently Asked Questions
What is the difference between marijuana and hashish?
Marijuana comes from dried cannabis inflorescences, while hashish is derived from the plant’s resin.
Which medical conditions are strictly recognized for cannabinoid use?
According to the source, they are used for rare forms of drug-resistant epilepsy and chemotherapy-induced nausea that resists conventional treatment.
What is the addiction risk for teenagers?
A review in the Journal of Addictive Diseases indicates that about one in six adolescent users risks developing a dependency.
How should communities balance the conversation between medical benefits and adolescent health risks?