Anorexia is beleived to be caused by psychological, biological and societal factors. Our society may contribute to the development of this disorder by its emphasis on thinness. Women commonly feel a pressured to be thin, and dieting has come to be viewed as a normal behavior. BUT soon food and the fear of gaining weight become the center of the person's focus. The person takes exercise to an extreme.
Treatment usually combines medical and psychological approaches.
Regular visits with a physican are important to monitor the person's physical condition. Meeting with a nutritionist or dietitian is often recommended. Some people with Anorexia actually become Bulimic at some point as an alternative way of controlling their weight. I think I understand your concern. Even with the client's persmission, often the information shared is limited.