Do you know that women's bodies produce oxytocin, a hormone responsible for bonding? The phenomenon happens when they're falling in love—either in a new romantic relationship, or after meeting their baby for the first time. And a new study has shown that it may be the reason moms are able to persevere in the face of their children's tears and tantrums, while everyone else is running for the hills. "We know there are tradeoffs in terms of sexual responsiveness and in terms of attention to a new infant, who requires care and affection," said study senior author Julia Heiman said in a news release.

The results of the study show that this is just another way nature has insured the continuation of the human species—and a reason for nervous moms-to-be to relax and listen to their bodies. Do other people's crying little ones drive you crazy? How about your own? What role do you think biology plays in parenting?



Health Day: 'Love Hormone' May Help New Moms Heed Crying Babies