IQ, that is, Intelligence Quotient, is an index of individual intelligence test scores and the scores of subjects of the same age, and it is a standard to measure the level of individual intelligence. The concept of IQ was put forward by Professor Tuimeng, a psychologist at Stanford University.

The IQ of a normal person is generally between 9 and 11. People with an IQ higher than 11 are considered as people with relatively high IQ, while those with relatively low IQ are generally below 9.

Factors affecting IQ

Heredity: Genes related to IQ have different frequency distributions in different ethnic groups, and people with high average IQ have more IQ genes than people with low average IQ. Generally speaking, parents have high IQ, and children's IQ will not be low. This genetic factor is also manifested in the blood relationship, parents are both locals, and the average IQ of children is 12; The IQ of children born to parents who are married in different provinces is 19; Parents are cousins, and the number of children with low IQ has increased significantly.

second, breast milk: breast milk contains a variety of active substances that promote children's intellectual development, especially taurine, which has an important impact on intellectual development, is 1 times higher than milk. According to the survey, the IQ of children who grow up with breast milk is about 3~1 points higher than that of children who grow up with milk substitutes.

Third, diet: monotonous diet leads to the deficiency of some trace elements, or too little diet, protein and other serious nutritional deficiencies will lead to the retardation of IQ development. Excessive intake of heavy metals such as lead and copper will also affect IQ.

4. Weight: Children whose weight exceeds 2% of normal children will have a low level of vision, hearing and ability to accept knowledge. This is because too much fat in obese children enters the brain, which will hinder the development of nerve cells and the proliferation of nerve fibers.

environment: children who live in boring environment, such as abandoning their babies, will not get maternal love and good education, and their IQ will be lower. According to the survey, the average IQ of such children is only 6.5 at the age of 3, whereas the average IQ of 3-year-old children in good environment is 91.8.

VI. Drugs: Some drugs will affect children's intelligence. For example, taking antiepileptic drugs for a long time can make their IQ low, and after stopping taking them for several years, their IQ will be improved.

Brain experts believe that intelligence quotient is innate and cannot be changed. However, research shows that people's IQ is different at different time periods. This is why some children born to the same parents have low IQs and some have high IQs. Parents of children with high IQs can guide and develop more, and parents of children with low IQs should not lose heart. We often encourage them in their daily lives, which can also make them more confident and better! .