Pregnant mother don’t cry hard, these behaviors are the way of fetal protection, intrauterine know how to love people

As we all know, fetal nutrition, metabolites and oxygen are obtained through the placental and maternal replacement, but the fetal blood cells have never been exchanged. However, in fact, the blood cells of the fetus enter the mother’s blood by slowly penetrating the placenta, and finally into the mother’s organs. < / P > < p > scientists have found that: these blood cells exist in the mother’s body for a long period of time after delivery, and these cells have the ability to repair, make the organs in the mother’s body younger, enhance the vitality of the mother’s body, and improve the immunity. < / P > < p > I don’t know if you have found such a situation: when most newborns are born, their body length is about 50cm. Of course, those giant babies are excluded. So what’s going on? In fact, such a situation is also a way for the fetus to know how to love their mother. During pregnancy, the uterus is elastic and will expand with the increase of fetal volume. < / P > < p > although the uterus is elastic, it does not mean that it can be expanded infinitely. When the fetus is about to give birth at full term, the volume of the uterus is only 35 * 25 * 22 cubic centimeters. From the data, it is not enough for the survival space of the fetus. < / P > < p > therefore, in order to protect the mother’s uterus, the fetus will curl up and make its own size smaller. At the same time, when its body length reaches 50cm, it will automatically stop growing. < / P > < p > when the fetus is mature, the fontanelle will secrete a kind of “emulsifying enzyme” hormone, and then stimulate the mother’s pituitary gland. After receiving the signal, the mother begins to have labor pains, and then enters the state of delivery. < / P > < p > the fetus needs to constantly shrink and rotate its body to the best position. It is also necessary for the fetus to go through the birth canal and cooperate with the mother’s force to deliver along the birth canal. < / P > < p > therefore, whether in pregnancy or in the process of delivery, the fetus has paid as much as the mother. Although the strength is weak, it is still guarding the mother. < / P > < p > the larger the fetus is, the more it will cause pressure on the surrounding organs, such as the stomach, the heart, especially the heart. According to the truth, pregnant mothers should feel chest tightness and dyspnea. < / P > < p > at the same time, many mothers find that after giving birth to their children, their physical fitness is improved, which is also because the fetus will secrete a kind of stem cells during development, which can help mothers improve their immunity. < / P > < p > many women have dysmenorrhea, and even suffer from it. Dysmenorrhea is due to abnormal uterine contractions, and after pregnancy those innervating uterine contractions will disappear completely, just to alleviate the problem of dysmenorrhea. After so much talk, are pregnant mothers still complaining about the hardships of pregnancy? In fact, we are trying to protect the baby at the same time, the baby is also trying to protect the mother. Pets