**Preface to "Anorexia Nervosa"**

Anorexia nervosa is a common eating disorder affecting several functions of the body. Although our knowledge of the underlying mechanism has increased, therapeutic options are still limited. This Special Issue contains 4 original and 4 review articles that discuss several aspects of anorexia nervosa and cover a broad range of topics from the bench to the bedside.

**Stephan Zipfel, Andreas Stengel, Katrin Giel**

*Editors*
