Study: Men with small testicles might make better dads

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Why are some dads more nurturing than others? A study suggests the answer might have to do with testicle size. (Cavan images)

Why are some dads more nurturing than others? A study suggests the answer might have to do with testicle size. (Cavan images / Getty)

Women: Looking for a family man? Someone who will jump at the chance to change a dirty, happily read bedtime stories, and  gladly help with homework? Before you plunge into parenthood with the dude of your dreams, you might consider pulling out a measuring tape and asking him to drop his drawers.

Researchers at Emory University in Atlanta, Ga., found that men with smaller testicles are more nurturing with their kids, according to Time magazine. Yes, small is best when it comes to the family jewels.

This might sound like nonsensical fodder for a clicky blog post but actually the science behind the findings published in the Proceedings of the National Academy of Sciences makes logical sense. Studies have already found that men with higher testosterone levels are less interested in having a family, and the smaller the testicles, the less manly hormone.

Seventy biological dads, age 21 to 43, in Atlanta participated in the study. Researchers measured their testes and used MRI scanning to track their brain activity while they looked at images of their kids. The team found that the area of the brain linked to nurturing lit up like the Vegas Strip in those men with smaller sacks. What’s more, researchers asked the partners to rate their husbands’ involvement with their children. Sure enough, those with the smaller berries were most likely to pop out of bed in the middle of the night to pick up a screaming baby.

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