Boys are more demanding than girls before they are born, according to scientists

Finding out the sex of a baby during pregnancy could lead to better life chances, a new study has discovered. Male baby pregnancies are more likely to result in complications, possibly because they grow faster in the womb and require more nutrients and oxygen than supplied by the mother through the placenta -- the temporary organ that attaches to the wall of the uterus during pregnancy to help the fetus grow and develop.

from Top Health News -- ScienceDaily https://ift.tt/vo5wy2d