Why are men generally taller than women?

It turns out that the height of a person mainly depends on the length of the bones in the lower limbs. The reason why women grow short and men grow tall is that the development of lower limb bones is different between men and women.

There is a certain pattern in the development of people's bodies, and it is not the same every year. If a person's height at birth is 50 centimeters, then, by the age of 5, it will increase by about 100 centimeters. By the age of six or seven, people will grow 8 centimeters and 10 centimeters taller every year.

After that, until puberty, the growth rate of the person begins to slow down, and it grows only 3 cm to 4 cm per year. There is not much difference in height between men and women from birth until puberty. After entering puberty, the rate of increase in height increases again, and it can grow 5 cm to 7 cm per year

At the age of seventeen or eighteen, after puberty and adolescence, the bones of the lower limbs generally do not grow in girls, while in boys, they continue to grow.

At the same time, due to the effect of sex hormones and growth hormones, the amount of food and exercise for boys is greater than that of girls, so that it is easier to meet the needs and absorption of protein, calcium, phosphorus and other substances necessary for growth and development, so boys are often stronger than girls while being taller.

This is mainly related to the evolution of human beings, whether it is a primitive society or an agricultural society, men are responsible for manual labor, the strength of labor means that people are strong, and men naturally bear more responsibilities. Although today's society no longer relies on manual labor with the improvement of productivity, the image of tall and masculine men and petite and gentle women still exists.

I think that the development of lower limb bones is different between men and women, so men are generally taller than women.

Because men's genes determine men's stronger appearance, they are taller than women.

This may be a hormone problem, and boys love sports, so they can grow tall.

This is an innate factor, but there are still very tall girls.

Genetic problems, women are too tall and not aesthetically pleasing Stunned.

This is nature's genetic selection, and it's a normal thing.

Because short men and women are generally not looked down upon, they have not been married, there are no offspring, and the rest are tall, and the giraffe has a long neck, which has evolved from a long time ago.

Because their genes are different, they will have different situations, so they will be like this.

The amount is related to the secretion of growth hormone in the body, as well as diet and exercise habits.

This is the reason for the hormone secretion in the body, which is why it is like this.

01 Girls develop rapidly during puberty (13-18), and their height can exceed that of boys in junior high school, and when the development stage tends to end around the age of 18, the bones of the lower limbs no longer grow, and the height is stable. Puberty begins late in boys (15-20) and ends relatively late, after which the bones of the lower limbs continue to grow, usually until the age of 23. So in general, men are generally taller than women.

It is an indisputable fact that men are generally taller than women in human society. But what exactly is the reason for this?

According to the research of foreign experts, human height is closely related to the development of the bones of the lower limbs. Scientists selected a number of men and women with normal development to focus on the study, and found that the difference in the length of the trunk of men and women of the same age was not so significant, while the difference in the length of the lower limbs was unusually obvious.

For this reason, some people have further studied the characteristics of bone development before and after the maturation of men and women, and finally revealed the mystery that men are taller than women: from birth to puberty, the development of bones between men and women increases in waves, with an increase of 3 7 cm per year, and there is not much difference in height. At puberty, girls (13 to 18 years old) develop very quickly, and in junior high school, girls can be taller than boys, and when they grow to about 18 years old, the developmental stage tends to be "end", the bones of the lower limbs no longer grow, and the height is "stable".

Adolescence in boys (15-20 years old) begins later and ends relatively late. Moreover, after the end of puberty, the bones of the lower limbs will continue to grow, and generally continue until the age of 23. From this point of view, the duration of puberty in men is about 5 years longer than that of women, so in general, men are generally taller than women.

Height of men and women There is a very important basic knowledge in biology, that is, the traits of organisms are controlled by genes. That is, whether you have double or single eyelids, dark or light hair, and large or small eyes are all controlled by genes. The same is true for height, but in addition to being controlled by genes, height is also affected by the external environment, such as:

Whether the nutrition can keep up with the growth process, and whether it can get enough energy. In famine years, because the energy obtained by humans cannot meet the needs of growth, the average height of people in famine years will be lower; In the years when food is abundant, the average height of people will be higher. But in the same era, boys are generally taller than girls.

Since the energy that humans can obtain in the same era is about the same, it is not an acquired factor that causes the difference in the average height of human men and women, but due to genetic control.

To trace its origin, we have to start with primitive society

In primitive societies, men were responsible for hunting wild beasts and picking fruits, while women were responsible for cooking and watching children at home. According to the theory of evolution, only men who are physically strong and have a height advantage can not be eliminated by the environment. In order to be able to make the men of their family have enough physical strength to hunt wild beasts and fight against other tribes, women give the best food in the house to men, and with the continuous evolution of human beings, men become taller and taller, and women become more and more small birds.

Although height and shortness are not determined by a group of genes, there are more dominant genes among the comprehensive genes of height

Many people have made ** about the height of people, because in human cognition, people are more pleasing when they grow taller, especially boys. When girls are looking for a husband, they will give priority to finding a stronger and taller man, because the height of their offspring generally follows their father. If the father grows taller in the parents, his children will definitely follow their father a little, and no matter how bad it is, it is the average height of the parents.

But if the mother is very tall and the father is very short, the height of the child born will most of follow the father. <>

Men take pride in eating a lot of food during puberty, but girls reduce their rice intake in order to maintain a slim figure

Teenagers generally have adolescence in junior high school, and at that time, children are also easy to yearn for the opposite sex, and at this time, their own charm is particularly important. During puberty, boys want to be strong, so they try to eat more food. But girls are beautiful at this time, and they have equated fat and ugly beauty in their hearts, so the girls began to live on a diet.

Therefore, the later growth process is also one of the reasons why men are generally taller than women. <>

To sum up, in primitive societies, men have begun to be stronger than women, and in modern times, many women have become thinner and thinner due to dieting and other diets in the later growth process (except for the big girls in the north, after all, they eat about the same amount as the men in the north).

Although men develop later than women, generally speaking, puberty takes a longer period of development, about five years longer, so men are generally taller than women. But some men are shorter, perhaps because of their parents or for some external reasons.

Not all men are generally taller than women, Russian women are generally about the same height as men, and this should be a problem of genes, which has led to the fact that men are generally taller than women in some regions.

A: This is due to the difference in the physiological structure of men and women.

Men's bones are larger than women's, and men's growth hormones, sex hormones, and exercise more than women's.

Because men are more active and active than women, they exercise a lot, which leads to better bone development. Men also have advantages in their own conditions, and androgens are also good for physical development.

Because men's growth and development are better than women's, and men are more athletic than women, more exercise can promote the growth of bones. So men will be taller than women.

The reason why men are taller than women is mainly because of men's own genes. But there is also a small percentage of men who are not as tall as women.

Because in the process of evolution, males have to accept sexual selection from females in addition to environmental selection, so the genes of boys will be a little stronger than those of girls.

This is due to the intrinsic genes of men, and the genes that determine the height of the human body are that men are taller than women.