With this research, it looks like the excuse that some people were not cut out to be dad's just won't work.
There's also preliminary but tantalizing evidence that fatherhood can change the brain. A 2006 study found enhancements in the prefrontal cortex of the father marmoset. After childbirth, the neurons in this region showed greater connectivity, suggesting that having young children could boost the part of the brain responsible for planning and memory, skills parents need when having kids gives them more to keep track of. The neurons also had more receptors for vasopressin, a hormone that has been shown to prompt animal fathers to bond with offspring. Armed with the knowledge that their hormone levels have shifted precisely so they'll be more apt to cuddle their newborns, men may feel entitled to do more of the soothing. Which can only be good for kids—and for tired moms. This Father's Day, it's time to thank dads for all their bodies do.
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