This month, we find out how the menstrual cycle influences competition and cooperation and why women’s sexual interest takes a nosedive after childbirth. We also ask the question: what’s the point of cuddling? Does it make us feel closer to our partner, or is it just a stepping stone to sex?



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"Ah, a nice cuddle. Cuddles are lovely. Not as lovely as sex, obviously..." FreestocksThe articles covered in the show:van Anders, S. M., Edelstein, R. S., Wade, R. M., & Samples-Steele, C. R. (in press). Descriptive experiences and sexual vs. nurturant aspects of cuddling between adult romantic partners. Archives of Sexual Behavior. Read summaryRupp, H. A., James, T. W., Ketterson, E. D., Sengelaub, D. R., Ditzen, B., & Heiman, J. R. (in press). Lower sexual interest in postpartum women: Relationship to amygdala activation and intranasal oxytocin. Hormones and Behavior. Read summaryLucas, M., & Koff, E. (in press). How conception risk affects competition and cooperation with attractive women and men. Evolution and Human Behavior. Read summary