The seven levels of IQ are as follows:

1. A genius has an IQ value greater than 14.

2. The intelligence between 12 and 14 is excellent.

3. Excellent intelligence between 11 and 12.

4. The intelligence between 9 and 11 is average (most people).

intelligence between 5 and 8-9 is low.

there are some defects in intelligence between 6 and 7-8.

7, less than 7 belong to low energy.

Influencing factors

1. Heredity: Generally speaking, if parents have high IQ, their 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.