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Int J Eat Disord. 2010 Sep;43(6):543-8. doi: 10.1002/eat.20736.

The measure of a man: associations between digit ratio and disordered eating in males.

Author information

1
Department of Psychology, Florida State University, Tallahassee, Florida 32306-4301, USA. asmith@psy.fsu.edu

Abstract

OBJECTIVE:

The current study sought to determine whether there is a relationship between prenatal testosterone exposure, as indicated by the digit ratios of the second to fourth fingers (2D:4D ratio), and disordered eating and drive for muscularity in men.

METHOD:

Digit ratios were calculated by measuring photocopies of participants' finger lengths. Self-reported body image and eating attitudes and behaviors were assessed.

RESULTS:

There were significant correlations between 2D:4D ratio and disordered eating and drive for leanness, indicating that greater prenatal testosterone exposure was associated with less disordered eating and increased drive for muscularity.

DISCUSSION:

This suggests that greater prenatal testosterone exposure may be protective factor against the development of eating disorders in men. Potential mechanisms are discussed.

PMID:
19718667
DOI:
10.1002/eat.20736
[Indexed for MEDLINE]

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