The scientific method of having a son

Although the idea of ​​favoring sons over daughters is less prevalent nowadays, it still exists in some remote and culturally backward areas. People in some areas will try various folk remedies in order to have sons. It is very important to understand the scientific method of giving birth to a son. The gender of the fetus is determined by genes. The following is a detailed introduction to the key factors that determine whether a boy or a girl is born.

The scientific method of giving birth to a boy mainly considers the survival time of male sperm in the female body. The X sperm that determines the baby's gender as female has high acid resistance, while the Y sperm that determines the baby's gender as male has high alkali resistance. This is the important revelation of giving birth to a boy or girl. The scientific method to give birth to a boy is to base on the effect of acidity and alkalinity on sperm. If the alkaline environment of the vagina can be improved, the chances of giving birth to a boy will be greater.

One of the conditions for male sperm and female egg to combine during intercourse is that the man will ejaculate his sperm into the female vagina. Because the vagina is an organ that is in direct contact with the outside world, it is often filled with strong acid to prevent the invasion of external bacteria. The strong acidic environment in the vagina inhibits the activity of X sperm in the vagina, but the activity of Y sperm is even more inhibited. Therefore, in an acidic environment, the activity of Y sperm is more restricted than that of X sperm. Therefore, although the number of Y sperm in men is twice that of X sperm, the sex ratio at birth is basically maintained at 1:1. That's Dr. Shettles's insight.

Based on the above characteristics of male X and Y sperm, choosing the right time during sexual intercourse will have a certain impact on the gender of the baby. Choosing the time of sexual intercourse cannot completely guarantee the birth of a boy or a girl, but it can increase the chances of having a boy or a girl. If you want to have a girl, you should have sex 2-3 days before the ovulation day. 2-3 days before the ovulation day, the cervix will not secrete alkaline fluid, so the acidic environment in the vagina can be maintained. In addition, the life span of Y sperm is only 24 hours, so by the day of ovulation, Y sperm has basically died out. If you have sex at this time, 90% of it will be a girl.

Therefore, if you want to have a boy, you must have sexual intercourse on the ovulation day. Ovulation day cervix alkaline, is conducive to Y sperm swimming, Y sperm swimming speed, and the number of Y sperm advantage (twice that of X sperm) can combine with an egg from the first born boy.