Everyone knows that male sperm can be divided into x-sperm and y-sperm. If the x-sperm combines with the egg, it will give birth to a girl, while if the y-sperm combines with the egg, it will give birth to a boy. In fact, there is a difference in the survival time of y sperm and x sperm in the female body. So what is the survival time of Y sperm and X sperm?
In order to understand the state of sperm in the female body and further clarify the reasons for infertility, people have studied the "post coital test" that simulates natural reproduction. The more active sperm there are, the better the "receptivity" of the uterus and vagina to sperm, and the stronger the self body of sperm; conversely, it indicates poor "receptivity" of the female vagina or cervix to sperm, or poor quality of sperm.
In addition, the survival period of eggs depends largely on the timing of sexual intercourse if the male ejaculates strong and abundant sperm, while the female ovulates and undergoes normal acid-base changes, and the above two sets of chemical elements inside and outside the egg cell are balanced. The survival period of X sperm is within 2-3 days (i.e. within 72 hours), while Y sperm, although having certain advantages in personality traits, only has a survival period of about 24 hours.
If both x and y sperm are waiting for the arrival of the egg in the fallopian tube, and all advantages of y sperm are diminishing and disappearing during the waiting period, the possibility of giving birth to a girl is higher when the egg arrives; If the egg is waiting for the arrival of sperm in the fallopian tube, and the sperm always arrives first, the possibility of giving birth to a boy is higher; If sperm and egg reach the fallopian tube at the same time or almost at the same time, the survival period of sperm will result in the same outcome as the latter (i.e. a higher likelihood of giving birth to a boy).
Egg cells have a certain ability to distinguish between x and y sperm. When the content of calcium and magnesium inside and outside the egg cell is higher than that of sodium and potassium, the egg cell rejects sperm and gives birth to a girl, otherwise it gives birth to a boy. But when the two groups are in balance, giving birth to male and female depends on the respective advantages of x and y sperm.
Finally, it is recommended that if there is a higher chance of having a boy, it is best to choose to have sex on the day of ovulation or 2-3 days before ovulation, as vaginal secretions are alkaline at this time. Beneficial for the continued vitality of Y sperm. Pay attention to the frequency of sexual activity between couples, and it is best for the male partner to abstain from sexual activity for 3-5 days before engaging in sexual activity.
This article provides a detailed introduction to the survival time of y and x sperm in the female body. If you are a woman who wants to have children, you can design sexual intercourse by controlling the survival time of y and x sperm, which may result in the desired gender of the baby.
