It is said that close relatives are either mentally retarded or talented, such as Superman Li Zekai.

The incidence of dementia in children who are not closely related is 150 times.

People draw a conclusion from countless facts: the marriage fertility rate of closely related men and women is low, the mortality rate of offspring is high, and congenital malformation and hereditary diseases often occur. In modern times, a large number of data prove that the incidence of dementia children is 150 times higher than that of non-consanguineous marriage, and the neonatal mortality and disability rate are more than three times higher than that of non-consanguineous marriage.

It has also been reported that the number of children married by close relatives who died before the age of 20 reached 13.9%, while the number of children married by non-close relatives was only 1.7%. A large number of facts have proved that consanguineous marriage is not good for future generations and should be banned.

Li Ka-shing's wife, Zhuang Yueming, is Li Ka-shing's cousin. Li Ka-shing and his wife are close relatives. Surprisingly, Li Ka-shing's two sons, Li Zeju and Li Zekai, not only failed to become mentally retarded, but also became business tycoons. I have to say, Li Ka-shing is really lucky.

When Zhuang Yueming gave birth to Li Zeju and Li Zekai, he was already very old. At that time, medicine was not very developed, and no one paid attention to consanguineous marriage. Fortunately, however, after Li Zeju and Li Zekai were born, everything was normal. Not only did the brothers not become mentally retarded, on the contrary, their IQ was very high.

Extended data:

Potential dangers of recent marriage:

1, leukemia The offspring of close-related couples are 13.5 times more likely to suffer from albinism and 63.5 times more likely to suffer from congenital ichthyosis.

2. Mental retardation. The intellectual problems of children born to consanguineous couples will also be affected to some extent. Generally, consanguineous marriage can easily lead to mental retardation of children, and there are more congenital deformities than children born of non-consanguineous marriage.

3. Congenital malformation. Intimate marriage can have serious consequences. For example, the descendants of couples who are married by close relatives are likely to die early, and the probability of death is more than three times that of children born to couples who are not married by close relatives;

Moreover, consanguineous marriage will greatly increase the rate of congenital malformation of children born, and children born to close-related couples are prone to congenital malformation, and children will have problems such as multiple fingers or syndactyly.

4. Polygenic genetic diseases. The offspring of consanguineous marriage are much more likely to suffer from some polygenic genetic diseases than those of non-consanguineous marriage. The probability of inbreeding offspring suffering from polygenic genetic diseases such as congenital heart disease or spina bifida is as high as 1.64%.

However, the probability of children born of non-consanguineous marriage suffering from these polygenic diseases is only 0.57%, which is much lower, and the probability of suffering from diseases such as hypertension, schizophrenia and cleft lip and palate is relatively higher.

Therefore, prohibiting consanguineous marriage can greatly reduce the probability of future generations suffering from these diseases.