Effects of Marijuana on the Adolescent Brain

Key points:

  • While marijuana is legal in some states, research shows that it can be dangerous to young people because the brain does not fully develop until the age of 25.

  • Studies have shown that heavy marijuana use in adolescence can cause physical changes to the brain, memory and learning issues, decreased driving ability, and poorer quality of life.

With the legalization of marijuana in some places across the country, it’s understandable to think that this substance is safe. But years of research shows that marijuana use may be harmful to adolescents and their developing brains.