1, genetic
Genetic factors are one of the main causes of severe mental retardation. In developed countries, mental retardation caused by genetic diseases accounts for more than half of the total number of people with severe mental retardation.
2. Infection and dystocia
Prenatal causes If pregnant women are infected with rubella virus, influenza and other viral diseases in the first four months of pregnancy, it will do great harm to the fetus and baby, which may cause fetal congenital malformation and mental retardation.
3. Don't breastfeed when you are angry.
Studies have shown that under the influence of bad emotions such as sadness, anxiety and anger, people's neuroendocrine function can be disordered, which directly affects the physiological function of the body. At the same time, it will produce a large number of substances harmful to health (some people call them harmful hormones or endocrine toxins). Toxins secreted by lactating mothers when they are angry will enter the baby's body through milk, poisoning the baby, leading to decreased immunity and stunted development. Therefore, for the sake of the baby's health, lactating mothers should try to keep their mood calm and less angry.
Don't move into the newly renovated house immediately.
The house has just been renovated, and many parents can't wait to bring their babies in. As we all know, decoration materials and furniture will emit some chemicals such as formaldehyde, benzene, lead and radon, which are seriously harmful to health. Especially the baby, not only has poor resistance, but also likes to grope around with small hands. Putting painted hands in your mouth can easily lead to lead mercury poisoning and affect your baby's intellectual development. Therefore, after the renovation of the new house, it is best to wait until the first half of the year before moving in.
5. Poisoned bacillary dysentery
This is a disease that children aged 3 to 5 are more likely to get. There are symptoms such as high fever, coma and convulsions. Because toxins produced by bacteria can directly damage the nervous system and stimulate brain tissue, they often lead to hypoxia in children's brains, thus affecting intelligence.
6. Tetanus
Because tetanus Bacillus can not only cause muscle tension and affect the development of motor nerves, but also cause tissue necrosis and myocardial injury, thus affecting intellectual development, it is very important to prevent tetanus for children's physical and mental health. Once it happens, the main relief measures are to thoroughly clean the wound and inject tetanus antitoxin according to the doctor's advice.
Extended data
Characteristics of children with mental retardation
1. Abnormal urine smell: Some infants with mental retardation have special urine smell. For example, children with phenylketonuria have obvious abnormal urine taste and should seek medical attention immediately.
2. Abnormal face and posture: Some babies with congenital mental retardation have abnormal face and posture. For example, children with congenital stupidity have wide eye distance, squint eyes, flat nose, tongue dragging out of mouth, drooling and other manifestations, which is often called "international face". Children with hydrocephalus have a particularly large head circumference, and children with microcephaly have a particularly small head. The body of hypothyroidism is particularly short, and the skin of phenylketonuria is unusually white and the hair color is particularly light.
3, slow movement: lying flat, looking up, sitting, standing, walking and other actions occur later than children of the same age. In particular, it will be manifested as walking late. After 4 years old, I often have to return to my side and walk unsteadily.
4. hyperactivity: contrary to children who are too quiet, hyperactivity is also a feature of some mentally retarded children. Many mentally retarded children can't stay quiet for a while. They are always active, especially children aged 4 to 5.
People's Network-Characteristics of Children with Mental Retardation? What factors will affect another child's intelligence?