Marijuana remains a controversial drug that consists of  complex mixture of psychoactive substances that affects brain function.

 

In adolescents, one of the main concerns is THC’s ability to bind easily to one receptor, called CB1. These receptors are found all over the brain, but they are particularly common in areas associated with reward and executive functioning — which includes memory and decision-making. CB1 is more abundant in adolescent brains than in adult ones.