This month, in our fifth anniversary episode (WUHOO!), I speak to Melissa Fales of UCLA about her new research on men’s hormone levels and how they vary over the course of their girlfriend’s menstrual cycle. We’ll also look at two other experiments on ovulation and attraction out this month: one on relationship conflict, and another on the sexual allure of musicians.



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We're 5 years old this month! Good Lord, I'm old...The articles covered in the show:Fales, M. R., Gildersleeve, K. A., & Haselton, M. G. (in press). Exposure to perceived male rivals raises men’s testosterone on fertile relative to nonfertile days of their partner’s ovulatory cycle. Hormones and Behavior. Read summaryGangestad, S. W., Garver-Apgar, C. E., Cousins, A. J., & Thornhill, R. (in press). Intersexual conflict across women’s ovulatory cycle. Evolution and Human Behavior. Read summaryCharlton, B. D. (2014). Menstrual cycle phase alters women's sexual preferences for composers of more complex music. Proceedings of the Royal Society of London B, 281(1784), 20140403. Read summary