The growth and development of human height are influenced by congenital inheritance, acquired nutrition, physical exercise and various living conditions. But among many factors affecting height, heredity is more important. The development of human body from single-celled fertilized eggs to complex multicellular individuals, from young fetuses to strong individuals, is controlled by genetic genes.
Scientists have now discovered the first "height gene" HMGA2. The DNA code of this gene, just a change of "letters", will change people's height. T is called "dwarf" gene; C is called "high" gene. Everyone got a copy of the "height gene" from their parents. If you only inherit the "high" gene of one parent, it will be about half a centimeter higher than those who get two "short" genes; If you get the "high" gene from your parents at the same time, it will be 1 cm higher than those who get the "short" gene at the same time.
Extended data
Height development:
1. Under normal circumstances, when girls 13 years old and boys 15 years old, the epiphysis will be basically closed, and there is limited room for height growth. Therefore, if it really belongs to short stature, intervention should be effective before this age.
2. The height of children mainly depends on the heredity of parents. Therefore, if the mother's height is less than 155cm and the father's height is less than 166cm, then we should pay attention to the child's height.
3. If you are worried that your child is short, monitor the height change every year. If you are below the15th percentile of your peers, you should consult a doctor.
4. For obese children, both men and women, due to the high level of estrogen in the body, it is easy to lead to premature epiphysis closure, which will affect lifelong high. Therefore, it is necessary to evaluate the bone age of 10 years old.
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