This study was performed to broaden the understanding of Anorexia Nervosa as a paradigmatic condition among eating disorders, considering the principle that individual and collective factors are fundamental in the construction of health and disease phenomena. This study is divided into three parts; in the first part - historical, etiologic, epidemiologic and clinical aspects are discussed; in the second part – this one -, the discussion involves the contributions of Psychology, Anthropology and Sociology, also in an interdisciplinary arrangement; the third part - which concludes the study - presents a theoretical essay on the use of some homeopathic medicines at least theoretically applicable to the treatment of Anorexia Nervosa, considering the Law of Similarity of the Homeopathic Doctrine. A bibliographic review was performed using the PubMed search platform. Although each part of the study has an independent context, the reader will benefit from reading and understanding the three parts. The second part – this one - is presented with emphasis on contributions of some of the main social sciences – Psychology, Anthropology and Sociology – and discusses theoretical concepts expressed by Sigmund Freud, Carl Jung, Jacques Lacan, Clifford Geertz, Marcel Mauss, among other scientists - always emphasizing the interaction between individual and collective factors as contributors to the genesis of Anorexia Nervosa. It is concluded that interdisciplinary studies are necessary and can broaden understanding over the genesis of human suffering – as occurs in the clinical condition Anorexia Nervosa - thus bringing patients closer to the most effective therapies, in a holistic perspective.
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