I don't know about you, but I am fascinated by this type of research on the impact of stress before and after conception. This new research suggests stress could play a role in helping determine the sex of the future baby.

New research suggests the sex of a baby could be affected by the motherĀ“s stress levels before conception and during the first 9 weeks of pregnancy.

Research by Romero-Gonzalez B et al. (2021) suggests women who gave birth to girls had higher levels of cortisol in their hair samples before and at the point of conception.

Scientists from the University of Granada (UGR) also suggest that women who experience stress before becoming pregnant and around conception are almost TWICE as likely to have a girl as a boy.

The study:

108 women had their biological stress measured:

Through hair cortisol levels and their psychological stress evaluated (the Prenatal Distress Questionnaire (PSS), the Perceived Stress Scale (PDQ) and the Stress Vulnerability Inventory (IVE)).

The scientists analysed the hair of pregnant women in the period spanning from before conception to week 9 of pregnancy. The scientists were looking to determine whether there was any link between the stress levels and the sex of the future baby.

The results:

It seemed that the impact of stress did make a difference!

"The results revealed significant differences in maternal hair cortisol levels in the first trimester based on the sex of the baby they had given birth to: the concentration of the hormone was higher if the baby was a girl than if it was a boy"

The conclusion:

"These findings show that the sex of the future baby could be conditioned, among many other variables, by the motherĀ“s stress levels during conception and first weeks of pregnancy. Further research is needed in this area to support our findings. "

Article and science reference:

Easy-to-understand article in Neuroscience News: https://neurosciencenews.com/stress-fetal-gender-1...

Science reference: Romero-Gonzalez B, Puertas-Gonzalez JA, Gonzalez-Perez R, Davila M, Peralta-Ramirez MI. Hair cortisol levels in pregnancy as a possible determinant of fetal sex: a longitudinal study. J Dev Orig Health Dis. 2021 Jan 7:1-6. doi: 10.1017/S2040174420001300. Epub ahead of print. PMID: 33407972. https://pubmed.ncbi.nlm.nih.gov/33407972/



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