Many girls and women develop harmful eating patterns during adolescence and early adulthood, with most cases of anorexia nervosa developing between ages 15 and 19 and most cases of bulimia nervosa developing between ages 20 and 24. Younger girls are also at risk for developing patterns of disordered eating. A recent population-based study of U.S. adolescents found that 0.3% of teens suffer from anorexia nervosa, 0.9% suffer from bulimia nervosa, and 1.6% suffer from binge eating disorder. This issue brief covers the current clinical understanding of eating disorders as well as best practices for treatment. In addition the brief highlights current research on eating disorders being conducted by CWRU faculty.