The average woman is 5"4' and weighs 140 pounds. The average model is 5"11' and weighs 117 pounds. Most fashion models are thinner than 98% of American women.
The mortality rate for anorexia is higher than for any other psychological disorder. In fact, it's the number one cause of death among young women. Five to ten percent of anorexics die within ten years of onset, 18-20 percent die within twenty years of onset, and only 50 percent report ever being cured.