The frequent use of marijuana can have a negative effect on the brain in adolescence and young adulthood, including causing impaired memory and learning, as well as lowering the IQ. These findings were made during the debate, which was held during the conference of the American Psychological Association.
According to researchers, in 2012 the use of marijuana among young people has increased almost three times compared to 1993. In the age group 18 to 25 years, 31% reported that they smoked marijuana in the last month.
Scientists argue that the dependence of marijuana is accompanied by a decline in IQ with 6 points.