The sexual competition hypothesis for eating disorders

Area of Science:

• Evolutionary Psychology
• Behavioral Biology
• Clinical Psychology

Background:

• Eating disorders are complex syndromes with significant public health implications.
• Existing evolutionary theories offer partial explanations for the etiology of eating disorders.
• The role of female intra-sexual competition in eating disorder development remains underexplored.

Purpose of the Study:

• To propose a novel evolutionary hypothesis for eating disorders.
• To frame eating disorders and the pursuit of thinness as manifestations of female intra-sexual competition.
• To explore the ultimate causation of eating disorders through an evolutionary lens.

Main Methods:

• The study presents a hypothesis based on Darwinian theory and evolutionary psychology.
• It examines the concept of female intra-sexual competition as a driver of eating disorders.
• The hypothesis is discussed in relation to mate attraction and retention strategies.

Main Results:

• The hypothesis posits that eating disorders originate from female psychological adaptations for mate attraction and retention.
• Modern Western environments may overactivate or disrupt these ancient strategies.
• The pursuit of thinness is framed as a component of maximizing 'mate value'.

Conclusions:

• The sexual competition hypothesis offers a potentially powerful explanation for eating disorders.
• This hypothesis is compatible with proximate causation theories.
• While not directly testable, the hypothesis generates refutable predictions for future research.