Since the dawn of time women have claimed that their bodies react differently whether they're pregnant with a baby girl or a baby boy.
Things like morning sickness and pregnancy cravings can differ, depending on the sex of your baby.
However, it is now being said that the sex of a baby may play a role in the immunity of pregnant women.
Researchers from The Ohio State University surveyed 80 pregnant women throughout their pregnancy, and studied whether the women exhibited different levels of immune markers based on the sex of their baby.
The levels of cytokines (immune markers) in the blood were monitored in order to assess whether the sex of a baby made a difference to the mother's immunity.
"While women didn't exhibit differences in blood cytokine levels based on foetal sex, we did find that the immune cells of women carrying female foetuses produced more pro-inflammatory cytokines when exposed to bacteria."
This means that women carrying girls exhibited a "heightened inflammatory response" when their immune system was challenged by bacteria.
While this study is super interesting, it will also help women and doctors recognise foetal sex as a factor that may impact immune challenges.
What an interesting revalation!