Paul Thompson in the article “ Startling Finds on Teenage Brains “ explains that a kid named Brazill had murdered his middle school teacher Grunow. Thompson supports his claim by first describing how researchers on the human brain has shown,Brazill and any other young teen that they are far from adulthood. Then he explains how studies have explained the impulsive , erratic behavior on teens which the biggest surprise is that recent teen brain research is the finding that a massive loss of brain tissue occurs in the teen years which brain growth in individual children and teenagers, with repeated brain scans from kids of three and twenty ,therefore they pierced together a slide on showing how brains grow and change. Thompson’s purpose is to