New research: Women who experience stress before and during conception could be almost TWICE as likely to have a girl as a boy
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 mother´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.
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.
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"
"These findings show that the sex of the future baby could be
conditioned, among many other variables, by the mother´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.
Want to help?
Together, we can make a difference to the health of the next generation.
Share our blog-posts on social media, so health professionals and parents become more aware of the science.
1. Please share this blog far and wide!
Every Monday, we send out a weekly digest to everyone enrolled in this
School. If you haven't already done so, do enroll to receive the weekly
digest. It's free!
3. Take our
FREE mini-course and recommend it to your friends - to learn about the infant
microbiome (and earn a free L-CERP and CPD HOUR!):
I would love to connect with you via social media.
FACEBOOK (please join us!): https://www.facebook.com/groups/473121803401844/
INSTAGRAM (please show some love!): https://www.instagram.com/microbiomecourses/
PINTEREST (please save the pin!): https://www.pinterest.co.uk/MicrobiomeCourses/
Want to know more?
Join our FREE one hour mini-course on the infant microbiome within our own online microbiome academy, Microbiome Courses.
Approved for 1 L-CERP (IBLCE) & 1 CPD HOUR (ACM)
Immediate access and go-at-your-own pace.
Learn from 7 professors about why vaginal birth and breast milk are so critical to the infant immune system.
Link to enroll: >>> https://microbirth.teachable.com/p/specialinfantmicrobiome1/
You can contact us via Microbirth website: https://microbirth.com/contact-us/
You can reach our school home page via any of these links:
Microbiome Courses: microbiomecourses.com
Microbiome Academy: microbiomeacademy.com