Trauma is the body or minds' response or reaction as a result of assault or fear. It is believed that the more often trauma is experienced, the longer lasting and more severe the symptoms of trauma are. You can find more information here: http://www.nimh.nih.gov/health/publications/helping-children-and-adolescents-cope-with-violence-and-disasters-what-parents-can-do/what-is-trauma.shtml