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Submission + - Fatherhood Decreases Testosterone (sciencemag.org)

Med-trump writes: A new study shows that becoming a father leads to a sharp decline in testosterone, suggesting that although high levels of the hormone may help men win a mate, testosterone-fueled traits such as aggression and competition are less useful when it comes to raising children. The study published in the Proceedings of the National Academy of Sciences revealed that testosterone levels were lowest in men who reported spending the greatest amount of time spent caring for their children.
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Fatherhood Decreases Testosterone

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You've been Berkeley'ed!