Why are most boys taller than girls?

We can see a problem that has long been common sense: men are usually taller and stronger than women. Frankly speaking, they have developed limbs. However, why is this? There is a proverb that girls who are better than boys are extinct because they can't find a boyfriend. There are differences between men and women. Where are they?

Scientists point out that bone development is an important factor in the height difference between men and women. From birth to adolescence, there is no difference in height between men and women. In adolescence, the sexual maturity of boys and girls begins at different times. Girls usually mature from 13 to 18, while boys mature from 15 to 20. Although both men and women are about 5 years old, boys start late and finish late, two years older than girls. This is a phenomenon that girls in primary and junior high schools are much taller than boys, and then they are overtaken.

The difference in bone length between men and women is mainly in the lower body. At the same time, under the action of sex hormones and growth hormones, boys eat more and exercise more than girls, so it is easier to meet the needs and absorption of protein, calcium, phosphorus and other substances needed for growth and development, so boys are often stronger than girls when they grow taller. Since ancient times, the mode of men and women engaged in affairs has always been "you plow, I weave, I carry water, and you water the flowers"-in an agricultural society, the intensity of labor means the intensity of people, and men naturally have to bear more responsibilities.

In modern society, the bad habit of male superiority and female inferiority embodied in physical strength has disappeared. The inherent image of men being tall and masculine and women being petite and gentle has been preserved.