Study in Pediatrics journal says 8 % of third-graders have purposefully injured themselves . Score: 6 The study found that approximately 8 % of third-grade students had at some point in their lives engaged in non-suicidal self-injury . Despite being painful , self-injurious behavior can become highly addictive .
Study in Pediatrics journal says 8 % of third-graders have purposefully injured themselves . Score: 6 Despite being painful , self-injurious behavior can become highly addictive .