• DOI:10.1016/j.yhbeh.2014.04.002
Corpus ID: 9818265

Exposure to perceived male rivals raises men's testosterone on fertile relative to nonfertile days of their partner's ovulatory cycle

@article{Fales2014ExposureTP,
  title={Exposure to perceived male rivals raises men's testosterone on fertile relative to nonfertile days of their partner's ovulatory cycle},
  author={Melissa R. Fales and K. Gildersleeve and M. Haselton},
  journal={Hormones and Behavior},
  year={2014},
  volume={65},
  pages={454-460}
}

• Melissa R. Fales, K. Gildersleeve, M. Haselton
• Published 2014
• Biology, Medicine
• Hormones and Behavior

The challenge hypothesis posits that male testosterone levels increase in the presence of fertile females to facilitate mating and increase further in the presence of male rivals to facilitate male-male competition. This hypothesis has been supported in a number of nonhuman animal species. We conducted an experiment to test the challenge hypothesis in men. Thirty-four men were randomly assigned to view high-competitive or low-competitive male rivals at high and low fertility within their… Expand

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