Post Date December, 02 2023
Who decides to have boys or girls?
Let's enter the microscopic world of the human body and take a closer look. The human body is composed of an astonishing number of cells, and there is a smaller and more precise substance in the nucleus of the cell, called a chromosome. Regardless of gender, every cell in the human body has 23 pairs of chromosomes, 22 of which are autosomes, and only one pair is called a sex chromosome. It is this pair of sex chromosomes that determines the difference between the sexes. Women's sex chromosome is XX, while men's sex chromosome is XY.
The same is true of primitive germ cells, which contain XX in women and XY in men. However, after further development into sperm and eggs, this pair of sexual chromosomes must be separated. For women, after the sex chromosomes are separated, each egg contains an X; For men, the sex chromosomes contained in the separated sperm are different, one being X and the other being Y, which are called X sperm and Y sperm. "When the sperm egg node synthesizes a fertilized egg, the sex chromosomes are recombined into a pair. If the egg combines with X sperm, the resulting sex chromosome is XX, and the fertilized egg develops into a girl."; "If the egg and Y sperm combine to produce an XY sex chromosome, the fertilized egg develops into a boy.". It can be seen that the key to determining the development of a fertilized egg into a boy or girl is sperm, which is determined by a man. However, this decision is random and cannot be changed by the day after tomorrow.
How do men of childbearing age achieve eugenics?
Eugenics refers to the adoption of certain measures by couples of childbearing age to obtain offspring with excellent genetic qualities. Husbands and wives have equally important responsibilities regarding eugenics.
It is generally believed that if a father accumulates toxic substances in his body, they can affect the fetus through three channels: ① Toxic substances directly damage sperm, which, if combined with egg cells, can lead to teratogenesis; ② Toxic substances dissolved in semen can cause damage to fertilized eggs and early embryos, leading to malformations Toxic substances directly affect the secretion of sexual hormones, weaken male sexual behavior, and affect female sexual function during progressive sex, preventing the implantation of fertilized eggs in the uterine wall.
Therefore, in order to give birth well, men of childbearing age who wish to be fathers should try to avoid frequent exposure to various toxic chemicals, and in particular, avoid excessive smoking and alcohol consumption; Men of reproductive age who suffer from varicocele, genital tract infections, and orchitis should be treated promptly, as these diseases can also affect sperm quality.
In addition, it should also be noted that close relatives cannot marry, and patients with severe genetic or infectious diseases should avoid or delay childbearing, preferably before the age of 35.
