The measure of a man: Associations between digit ratio and disordered eating in males
Article first published online: 28 AUG 2009
Copyright © 2010 Wiley Periodicals, Inc.
International Journal of Eating Disorders
Volume 43, Issue 6, pages 543–548, September 2010
How to Cite
Smith, A. R., Hawkeswood, S. E. and Joiner, T. E. (2010), The measure of a man: Associations between digit ratio and disordered eating in males. Int. J. Eat. Disord., 43: 543–548. doi: 10.1002/eat.20736
- Issue published online: 13 AUG 2010
- Article first published online: 28 AUG 2009
- Manuscript Accepted: 3 JUL 2009
- eating disorders;
- body image;
- human males;
- prenatal development;
- postnatal period
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.
Digit ratios were calculated by measuring photocopies of participants' finger lengths. Self-reported body image and eating attitudes and behaviors were assessed.
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.
This suggests that greater prenatal testosterone exposure may be protective factor against the development of eating disorders in men. Potential mechanisms are discussed. © 2009 by Wiley Periodicals, Inc. Int J Eat Disord 2010; 43:543–548