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[Evolutionary perspective of eating disorders].

¹Departamento de Psiquiatría, Universidad de Valparaíso, Casilla 92-V, Valparaíso, Chile. rositabehar@vtr.net

Revista Medica De Chile

|August 3, 2012

Summary

Eating disorders (ED) are linked to insecure attachment and evolutionary survival strategies. Symptoms may represent adaptive responses to environmental and genetic factors.

Area of Science:

Evolutionary psychology
Psychiatry
Behavioral science

Context:

Eating disorders (ED) are complex conditions with physiological, psychological, and behavioral components.
Attachment theory and evolutionary hypotheses offer insights into ED etiology and treatment.
Insecure attachment patterns are frequently observed in individuals with ED, impacting development.

Purpose:

To review the relationship between eating disorders (ED) and attachment theory.
To analyze natural selection-based hypotheses, including famine response, reproductive suppression, and intrasexual competition, in relation to ED.
To explore the evolutionary perspective on ED symptomatology.

Summary:

Insecure attachment, particularly avoidant in anorexia nervosa and anxious in bulimia nervosa, is characteristic of ED.

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Anorexic syndromes may reflect ancestral adaptive mechanisms for scarcity, status, and social exclusion.

Reproductive suppression in anorexia nervosa can be viewed as a form of genetic altruism, benefiting family members.

Impact:

ED symptomatology can be interpreted as a maladaptive, self-destructive adaptive state.
Understanding ED through an evolutionary lens highlights the interplay of genetic plasticity, environment, and cognition.
This perspective may inform novel therapeutic approaches for eating disorders.