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Added DSM-5 diagnostic criteria
'''Bulimia nervosa''' is an eating disorder characterized by recurrent episodes of binge eating followed by compensatory behaviors, or "purging". Types of purging include self-induced vomiting, fasting, overexercising, or the abuse of [[laxatives]], [[enemas]], or [[diuretics]]. This disorder occurs among some who suffer from [[anorexia]].<ref>http://www.nationaleatingdisorders.org/p.asp?WebPage_ID=286&Profile_ID=41141</ref>
'''Bulimia nervosa''' is an eating disorder characterized by recurrent episodes of binge eating followed by compensatory behaviors, or "purging". Types of purging include self-induced vomiting, fasting, overexercising, or the abuse of [[laxatives]], [[enemas]], or [[diuretics]]. This disorder occurs among some who suffer from [[anorexia]].<ref>http://www.nationaleatingdisorders.org/p.asp?WebPage_ID=286&Profile_ID=41141</ref> However, most people with bulimia are women.<ref name="piyl">Grison, Sarah, and Michael S. Gazzaniga. ''Psychology in Your Life''. W.W. Norton & Company, Inc., 2017.</ref>
Because suffers from bulimia tend to be an average weight, this disorder tends be more difficult to diagnose than other eating disorders.
==Criteria for bulimia nervosa==
Fewer people meet the clinical criteria of bulimia nervosa 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 name="piyl"></ref>
*Recurrent episodes of binge eating. An episode of binge eating is characterised by both of the following:<ref name="asa">American Psychiatric Association (2013).</ref>
**Eating, in a discrete period of time (e.g. within any 2-hour period), an amount of food that is definitely larger than most people would eat during a similar period of time and under similar circumstances.<ref name="asa"></ref>
**A sense of lack of control over eating during the episode (e.g. a feeling that one cannot stop eating or control what or how much one is eating).<ref name="asa"></ref>
*Recurrent inappropriate compensatory behaviour in order to prevent weight gain, such as self-induced vomiting, misuse of laxatives, diuretics, or other medications, fasting, or excessive exercise.<ref name="asa"></ref>
*The binge eating and inappropriate compensatory behaviours both occur, on average, at least once a week for three months.<ref name="asa"></ref>
*Self-evaluation is unduly influenced by body shape and weight.<ref name="asa"></ref>
*The disturbance does not occur exclusively during episodes of anorexia nervosa.<ref name="asa"></ref>
==See also==
* [[Anorexia nervosa]]
* [[Binge-eating disorder]]
==References==
==References==
[[Category:Psychology]]
[[Category:Psychology]]
[[Category:Eating Disorders]]