Average height of newborn

Nowadays, many parents measure their children's height when they are just born to commemorate their birthdays. The heights of different babies will definitely be different, and the heights of babies in different countries will also vary greatly. So today we will introduce to you the average height of a newborn. Let’s take a look at it together below.

The changes in the proportions of various body parts from fetal development to adult development. Generally speaking, under normal circumstances, a person is about 50 cm tall at birth; within one year old, there is the first leap in height growth, which can grow to about 75 cm; at the age of 2, it grows to about 85 cm; from 3 to 7 years old, the height increases by 6 to 15 cm each year. Most people will grow to 155-160 cm by the time they are 11-12 years old. During this period, most people's heights did not differ much. However, with the onset of puberty, height, like all organs in the body, undergoes another leap. Various conditions such as genetic factors, nutritional status and physical exercise lead to obvious differences in height between people. During this period, some people may grow 6 to 7 cm, or even 10 to 13 cm, each year. When entering junior high school, height growth is very obvious. Often within one or two years, an innocent and childish child will grow into a strong young man or a graceful and beautiful girl. After the age of 17 to 18, the rate of height growth slows down significantly until sexual maturity, which is when girls are 18 to 23 years old and boys are 22 to 25 years old, when a person's height is basically fixed.

Growth and development are influenced by both congenital heredity and acquired nutrition, physical exercise and various living conditions. But among the many factors that affect height, genetics is more important. The development of the human body from a single-cell fertilized egg into a complex multi-cellular individual, and from a tiny fetus into a physically strong individual, are all controlled by genetic genes. The heritability of body length is as high as 0.75-0.92, and the impact on daughters is particularly greater, with a heritability as high as 0.85-0.92. That is to say, 75% to 92% of male height and 85% to 92% of female height are affected by genetic variation. The maximum for men is only 25%, and the maximum for women is only 15%, depending on other acquired factors. This proves that genetics plays an extremely important role in children's height. Relatively speaking, weight is less affected by genetic genes, with 63% of men and 42% of women affected by genetics. 37% of men and 58% of women depend on acquired environmental factors. It can be seen that the acquired environment has a greater impact on body weight.

The above is the average height of newborns introduced to us by professionals, so if parents want to know more, they can refer to the data above, so that they can have an understanding of their own children. Usually we can give our children more nutritious food, so that the baby can have a healthy body and perfect height and weight.