From the perspective of obstetric physiology and eugenics, the optimal childbearing age is 2529 years old. If a woman gives birth prematurely, because her advanced nervous system and skeletal system are immature, she still needs to bear the important task of nourishing the fetus during pregnancy, which may lead to nutritional deficiencies in the mother, such as anemia, edema, osteomalacia, etc. Fetal development may also be affected. Due to congenital defects, most babies are weak and lack resistance to various diseases. In particular, the birth rate of children with congenital stupidity has more than doubled.
According to the survey, among the 102 couples who married close relatives, 5 couples had a junior high school education or above, 32 couples had a primary school education, and 65 couples were illiterate or semi-illiterate. Among them, there are four pairs of half-brothers and sisters born from the same father or mother, all of whom are illiterate. Genetic research has long confirmed that parental upbringing can increase the occurrence of genetic diseases, cause malformations and malformations, and harm future generations. The offspring of consanguineous marriages have a high mortality rate and poor physical and mental abilities.
Insufficient awareness of protection during pregnancy According to the survey, 71.3% of pregnant women with primary school education and above have the awareness to actively protect the fetus; while only 45.7% of pregnant women who are illiterate or semi-literate account for this.
Affect children\’s intellectual development. Our country\’s parenting experts have been exploring the impact of family environment on children\’s intellectual development for many years. The results showed that in terms of language, mothers with higher environmental scores and higher IQs were mostly more educated. They not only require their own learning, but also value their children\’s education. They are willing to spend time telling stories to their children and patiently answer their questions.
