Marijuana: Marijuana and
the Developing Brain
Youth who use marijuana regularly are more likely to have difficulty learning, memory issues, and have lower math and reading scores. The more marijuana youth use, the harder it may be for them to learn. These effects can last weeks after quitting. Using marijuana before the age of 25 can also affect brain development and especially in high doses, can cause temporary psychosis (not knowing what is real, hallucinations and paranoia) while the user is high.
The more marijuana youth use, the harder it may be for them to learn.