Marriage and fatherhood are associated with lower testosterone in males

نویسندگان

  • Peter B. Gray
  • Sonya M. Kahlenberg
  • Emily S. Barrett
  • Susan F. Lipson
  • Peter T. Ellison
چکیده

In order to study the hormonal correlates of the tradeoff between mating and parenting effort in human males, we examined the salivary testosterone (T) levels of 58 Boston-area men who were either unmarried (n = 29), married without children (n = 14), or married with children (n = 15). Additionally, we asked participants to complete a questionnaire that surveyed their demographic, marital, and parenting backgrounds. We tested the hypotheses that (1) T levels will be lower in married than in unmarried men and (2) married men with children will have lower T levels than unmarried men and married men without children. We also tested a series of hypotheses relating variation in parenting and spousal relationships to T. We found that married men with and without children had significantly lower evening T than unmarried men. No significant differences in T were found among the groups in morning samples. Among married men without children, higher scores on a ‘‘spousal investment’’ measure and more hours spent with a man’s wife on his last day off work were both associated with lower T levels. We suggest that lower T levels during the day among fathers may facilitate paternal care in humans by decreasing the likelihood that a father will engage in competitive and/or mating behavior. D 2002 Elsevier Science Inc. All rights reserved.

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تاریخ انتشار 2002