Longitudinal evidence that fatherhood decreases testosterone in human males

@article{Gettler2011LongitudinalET,
  title={Longitudinal evidence that fatherhood decreases testosterone in human males},
  author={Lee T. Gettler and Thomas W. McDade and Alan B. Feranil and Christopher W Kuzawa},
  journal={Proceedings of the National Academy of Sciences},
  year={2011},
  volume={108},
  pages={16194 - 16199}
}
In species in which males care for young, testosterone (T) is often high during mating periods but then declines to allow for caregiving of resulting offspring. This model may apply to human males, but past human studies of T and fatherhood have been cross-sectional, making it unclear whether fatherhood suppresses T or if men with lower T are more likely to become fathers. Here, we use a large representative study in the Philippines (n = 624) to show that among single nonfathers at baseline… Expand
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