Because in mountainous areas, they are too backward and their thoughts are not progressing, we find that in underdeveloped areas, on the contrary, they prefer to have boys. In this way, there will be a labor force, and family planning will not be considered. It is not a woman's business to have a boy or a girl. As long as you can't have boys, it's all women's fault. Actually, it's all about men. If a man's sperm contains X, give birth to a girl. If it contains y, it will give birth to a boy. It all depends on that person. This has nothing to do with that woman. Some families always have more women than men, but few men. Because the X gene is strong, most of the children born are girls.
If men are athletes or PE teachers, they usually like sports or fitness. Exercise can change the pH of human body. Men who like sports have acidic substances in their bodies and are prone to give birth to girls. If a woman is pregnant during ovulation, Y sperm swims very fast and it is easy to give birth to a boy. If a woman is pregnant in a safe period, X sperm will survive for a long time and it is easy to have a girl. Some women are acidic and more suitable for the survival of X sperm, so it is easier to have girls. Some women are alkaline, which is more suitable for the survival of Y sperm, so it is easier to have boys. If men smoke and drink for a long time, the number of sperm will be greatly reduced, and the chances of giving birth to girls will also increase. If a man's X sperm is more energetic, he is more likely to have a girl. If a man's Y sperm is more energetic, he is more likely to have a boy. ?