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Added the DSM-5 diagnostic criteria
*Anorexia is often preceded by a traumatic event and is usually accompanied by other emotional problems.<ref>[http://www.umm.edu/altmed/articles/anorexia-nervosa-000012.htm Anorexia nervosa] - University of Maryland Medical Center
*Anorexia is often preceded by a traumatic event and is usually accompanied by other emotional problems.<ref>[http://www.umm.edu/altmed/articles/anorexia-nervosa-000012.htm Anorexia nervosa] - University of Maryland Medical Center
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==Criteria for anorexia nervosa==
Fewer than 1 in 100 meet the clinical criteria of anorexia nervous as described by ''Diagnostic and Statistical Manual of Mental Disorders (DSM-5)'', released in 2013. The criteria includes both objective and psychological characteristics that indicate the disorder.<ref>Grison, Sarah, and Michael S. Gazzaniga. ''Psychology in Your Life''. W.W. Norton & Company, Inc., 2017.</ref>
*Restriction of energy intake relative to requirements, leading to significantly low body weight in the context of age, sex, developmental trajectory, and physical health. ''Significantly low weight'' is defined as weight that is less than minimally normal or, for children and adolescents, less than what is minimally expected.
*Intense fear of gaining weight or of becoming fat, or persistent behavior that interferes with weight gain, even though a person is at a significantly lower weight.
*Disturbances in the way in which one's body weight or shape is experiences, undue influence of body weight or shape on self-evaluation, or persistent lack of recognition of the seriousness of the current low body weight.<ref>American Psychiatric Association (2013).</ref>
== Epidemiology of Anorexia ==
== Epidemiology of Anorexia ==
About 90% to 95% of those diagnosed with anorexia nervosa are female. Research indicates that its incidence is between 0.3% to 1.3%, depending on severity.<ref>[http://onlinelibrary.wiley.com/doi/10.1002/eat.20107/pdf]</ref>
About 90% to 95% of those diagnosed with anorexia nervosa are female. Research indicates that its incidence is between 0.3% to 1.3%, depending on severity.<ref>[http://onlinelibrary.wiley.com/doi/10.1002/eat.20107/pdf]</ref>
== Factors Credited As Contributory ==
== Factors Credited As Contributory ==
The [[media]] perception of larger-than-average bodies as 'too fat', or something that must be changed via dieting, can contribute to many having an unhealthy body image. Also, some have cited society's pressure on women to be thin and desirable, and on men to be large and muscular, as something that can enhance eating disorders.
The [[media]] perception of larger-than-average bodies as 'too fat', or something that must be changed via dieting, can contribute to many having an unhealthy body image. Also, some have cited society's pressure on women to be thin and desirable, and on men to be large and muscular, as something that can enhance eating disorders.
*[http://www.mayoclinic.com/health/anorexia/DS00606/DSECTION=causes Anorexia nervosa: Causes] - Mayo Clinic
*[http://www.mayoclinic.com/health/anorexia/DS00606/DSECTION=causes Anorexia nervosa: Causes] - Mayo Clinic
*[http://atdpweb.soe.berkeley.edu/quest/Mind&Body/Carpenter.html Battling Anorexia: The Story of Karen Carpenter] by Adena Young
*[http://atdpweb.soe.berkeley.edu/quest/Mind&Body/Carpenter.html Battling Anorexia: The Story of Karen Carpenter] by Adena Young
== See also ==
== See also ==
* [[Pathogenesis]]
* [[Pathogenesis]]
* [[Bulimia nervosa]]
* [[Bulimia nervosa]]
* [[Binge-eating disorder]]
==References==
==References==