The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition Text Revision (DSM-IVTR) lists criteria for anorexia nervosa that include refusing to maintain a normal body weight, weighing 85% below normal. Postmenarcheal females can be amenorrheic, having the absence of at least three consecutive menstrual cycles. Individuals diagnosed with this disorder have a fear of gaining weight or becoming fat. The DSM-IV- TR reports that 90% of anorexia nervosa cases occur in females (DSM-IV- TR, 2005). Research shows that at some time during their adolescence around half of high school and college age girls and 10% of boys will develop an eating related disorder. While only 20% of girls may develop a diagnosed eating disorder like anorexia or bulimia, thirty percent have problems with eating and body image perceptions. The rate of eating disorders among adolescent girls has increased 300% since 1960. The percentage of eating disorders diagnosed among boys and younger children (ages 8-11) is also on the rise (Cumella, 2004).
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Darden, T., & Hedrick, K. (2005). Eating Disorders in School-Aged Children. Perspectives In Learning, 6 (1). Retrieved from http://csuepress.columbusstate.edu/pil/vol6/iss1/9