Boys Are More Demanding Than Girls Before They Are Born—According To Science

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Chattanooga, Tennessee—

When it comes to pregnancy, a new study finds boys are more demanding than girls. University of Cambridge and St. John’s College researchers looked at mice, and found that finding out the sex of a mother’s unborn baby could actually lead to lifelong benefits for their children. Specifically, they found the sex of a fetus can affect how well a placenta actually functions along with other factors such as diet-induced maternal obesity and stress. Researcher Dr. Amanda Sferruzzi-Perri explains, “Often parents don’t want to know the baby’s sex because they want it to be a surprise. But actually knowing the sex would help identify whether a pregnancy may be a greater risk than another because we know that some conditions of pregnancy such as pre-eclampsia and fetal growth restriction can be more prevalent in women that carry male babies than females. We don’t quite know 100 percent why that is but it might be related to the fact that male babies grow faster within the womb. So it might be that their demands for nutrients and oxygen supplied from the mother through the placenta can easily become limited […]. It may be that its resilience against stresses or poor conditions in pregnancy may be lower than, say, for females, who have got less requirements.”

(EurekAlert!