Does pregnancy reduce immunity?

Many female friends will obviously feel that their body's immunity has decreased during pregnancy. Everyone knows, or even knows very well, that female friends should always keep a happy mood during pregnancy. If the pregnant woman is extremely nervous and the fetus is absorbing nutrients from the mother at the same time, the pregnant woman will become physically exhausted as the fetus grows day by day. Perhaps this may lead to a decrease in the immunity of the pregnant woman. So, let us really understand whether immunity will really decrease during pregnancy.

Women's immunity is relatively low during pregnancy and before and after childbirth. At the same time, women are very nervous during this stage. The human body has two defense systems against disease, one is non-immune defense and the other is immune defense. The human body lives in a sea of microorganisms, and even inside the body, the presence of microorganisms in certain places is still necessary. For example, microorganisms in the intestines can synthesize vitamins that are essential to the human body.

Some microorganisms have the potential to cause disease in humans, but cannot do so if they are confined to a certain part of the body. Bacteria mainly enter the human body through the mouth and nose. The saliva in the mouth and the gastric acid secreted by the stomach are chemicals that are lethal to microorganisms. When people cough or sneeze, they can expel microorganisms from their bodies. When human skin is damaged, microorganisms enter and cause inflammation. This inflammation is the process in which the body's other defense mechanisms block the microorganisms near the wound and the white blood cells then eliminate the microorganisms. When the microorganisms are completely eliminated, the damaged skin is repaired. This type of defense of the human body is non-immune defense. When microorganisms that invade the human body cannot be eliminated by the non-immune defense system, the human body will mobilize the immune defense system to eliminate them. The dominant role in immunity is played by immunoglobulins present on the surface of lymphocytes, also called antibodies, and the microorganisms that invade the human body are called antigens. The immune defense system is mainly completed through the interaction between antibodies and antigens. Antibodies attach to antigens to destroy them, making the human body immune to certain diseases and preventing them from getting sick again. Diseases such as measles and mumps can only be contracted once in a lifetime, because once a person has contracted the disease, the body develops immunity to it and will never get the disease again throughout his or her lifetime.

The human body's defense system is not always functioning. In the first few months after birth, the immune system continues to develop, and then begins to decline in old age. A weak body is very susceptible to disease, especially long-term emotional stress can make the body even weaker, and this stress can also have an adverse effect on the body's immunity. Because tension can cause a series of reactions in the brain, when the hypothalamus in the brain is stimulated by tension, the pituitary gland is also stimulated, and the pituitary gland stimulates the adrenal glands, causing the adrenal glands to secrete more glucocorticoids, which will lead to a decrease in antibody production and ultimately affect the completion of the immune response. Therefore, tense emotions can greatly weaken the body's immunity to disease through this special pathway. Doctors recommend that pregnant women should pay attention to supplementing trace elements such as zinc and calcium. In addition, diet, exercise, and daily care are the best ways to improve the immunity of pregnant women. Supplementing more vitamin C can make the brain's response to stimuli more flexible and improve disease resistance. You need to walk slowly for dozens of minutes every day and keep warm.

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