Teens can be impulsive because their brains have not fully developed.Teen brain pamphlet The Adolescence and Adult Brain it states,"It is not surprising that the behavior of adolescents would be a study in change, since the brain itself is changing in such striking ways. Scientists emphasize that the fact that the teen brain is in transition doesn’t mean it is somehow not up to par. It is different from both a child’s and an adult’s in ways that may