The sex of a child may largely depend on blood pressure level, which was his mother before the pregnancy.
To such conclusion the canadian researchers, who published their findings in the American Journal of Hypertension.
The study was conducted in China among 1411 women who firmly stated that they intend to become pregnant in the near future. They all have basic medical examination when applying for a job and then their health status (particularly blood pressure, cholesterol, triglycerides and glucose) were monitored until delivery. The average time from the date of “registration” of the research group before pregnancy was 26 weeks.
In the end the participants of the experiment were born 739 boys and 672 girls. After scientists made an adjustment for such factors as age, education, Smoking, body mass index, coverage of the waist, cholesterol, triglycerides and glucose, it was found that mothers of boys, the average adjusted systolic blood pressure before pregnancy was 106 mm Hg, and mothers of girls – 103. After conception, this dependence was not examined.
According to the head of research, Dr. Ravi Retnakaran, earlier blood pressure before pregnancy was not viewed as a factor influencing the sex of the baby. Of course, he can’t be a decisive or the only one, but it is something that you should pay close attention.
“A new perspective on this issue may have implications for reproductive planning, and for understanding fundamental mechanisms that underlie the sex determination of the people, – quotes the scientist portal EurekAlert.
Previously, scientists named the best time of year for the birth of healthy children.