Teen Use


The Effects of Marijuana on the Teenage Brain, Reviewed by:Michael Kaliszewski, PhD, 2022, May 23

Marijuana use can have much more long-term effects for teenagers. During adolescence the brain is particularly sensitive to drug exposure, and marijuana use impacts how connections are formed within the brain.3 Other effects on the developing brain include interference with neurotransmitters and abnormal brain shape and structure volume.6

Studies have shown that the use of marijuana is associated with reduced cognitive function in teens.7 A recent study found that marijuana has a more negative impact on a teenager’s cognitive development than alcohol.9 Other long-term risks associated with marijuana use include respiratory issues, increased chance of lung cancer and heart attack, problems with child development during and after pregnancy, and the development of Cannabinoid Hyperemesis Syndrome (characterized by cycles of severe nausea, vomiting, and dehydration that may require emergency medical attention)…

What is the impact of cannabis use in adolescence?
Suchandrima Bhowmik, M.Sc. Microbiology, 2022, August 22

The use of cannabis can negatively impact adolescents and cause early onset of cannabis use disorder symptoms.

hronic use of cannabis has been reported to cause anxiety, depression, and psychotic symptoms. A multinational study indicated that using high-potency cannabis by 15 years of age leads to twice the risk of psychosis. Moreover, daily users of cannabis are more likely to develop psychotic disorders, with daily users of high-potency cannabis having the highest risk.

Furthermore, deleterious effects of cannabis have been observed on ongoing brain development as well as the fertility of adolescents. Cannabis has also been found to impair cognition in the short term, driving, as well as lead to sleep problems, acute paranoia, delusions, and hallucinations


High School and Youth Trends Drug Use,
NIDA. December 2019

More than 42,500 students from nearly 400 public and private schools across the country
participated in this year’s Monitoring the Future (MTF) Survey of drug use and attitudes among
American 8th, 10th, and 12th graders…

The Workings of the Adolescent Brain,
Frances Jensen, MD 2016, September 16