Anorexia nervosa, as defined by psychologists, is a serious psychological disorder characterized by a distorted body image and an obsession with thinness. It has the highest fatality rate of any psychiatric disorder.

Pro-ana/mia sites

The distorted viewpoint that comes with the disease leads many anorexics to not want to recover. The label "pro-ana" describes this decision. It's based on the idea that the disease is a choice, not a disorder. Pro-ana is the decision to live as an anorexic and not try to recover, while pro-mia is the decision to live as a bulimic.