Why are some people so big and their ditches so deep?

Generally, this is caused by genetic factors, which are not only related to your mother, but also to your father. Both men and women will have chest muscles. In addition, breast size is also affected by acquired factors, but most flat-chested girls are genetically influenced.

The size and shape of breasts are closely related to congenital factors, so breasts must be related to genetics. As we all know, women’s genes are xx, while men’s genes are xy, so the child will inevitably be affected by the father’s genes. In addition, the size of breasts is also related to the amount of fat in the body. The amount of fat in the parents' body will also affect the children. From this point of view, breast size can be inherited.

There are many factors in the human body that are related to breast size. In addition to breast development and breast fat accumulation, the size of female breasts also needs to be looked at. Simply put, the more developed the breast muscles are, the smaller the female breasts will be. It will become taller and taller. Both boys and girls have chest muscles, so the child's chest development is closely related to his parents. If a woman’s chest muscles are more developed, her child’s chest will be more upright. In the same way, if a man's chest muscles are developed, his child's chest will also be affected.