The birth of boys and girls is determined by sperm chromosomes. Women only have the X chromosome, men have X and Y chromosomes, and only when the male Y chromosome is combined with the female X chromosome will boys be born.
In fact, from the perspective of the proportion of the global population, the birth rate of boys and girls is similar.
The reason why more second children are sons now is the reason for human intervention.
1. Eating habits. Y sperm prefer to stay in an alkaline environment. Now that women know this reason, they will deliberately eat alkaline foods to make their constitution alkaline in order to better accept Y sperm.
Another reason is that what people eat is invisibly alkaline. For example, if you get up in the morning and don't have time to cook, buy a few steamed buns;
I also like to eat some soy products: they are all alkaline foods. Because of this eating habit, the female body invisibly becomes alkaline, and it is easier to give birth to boys.
2. Human intervention. Modern medicine can know the gender of a child who has not yet been born by doing B ultrasound.
I remember that in the beginning, there were many women who would take the initiative to ask for a fetus after getting married and pregnant, just because they knew that the child was a girl. Influenced by the idea of son preference, if only one child can be born, it must be a boy!
Later, in order to prevent such incidents, the hospital began to stipulate that parents could not be informed of the gender of their children. These people just take the inheritance of the lineage and the inheritance of incense too seriously, and many innocent little lives will be lost.
Relatively speaking, the first of the two methods is more reasonable, at least not deliberately harming life. In the broader sense, this is a social problem.
At the end of the day, people have to change their thinking. Although it is true that the old man's thinking is difficult to change, if you are wise, please do not lose your sanity.
Or do you have to have your own opinion, as this netizen said, giving birth to boys and girls can not interfere.