Through the study of exercise immunology, we found that moderate exercise increased neutrophils, macrophages and NK cells. The activity of NK cells treated with cancer cells will increase with the intensity of exercise and decrease after stopping exercise. However, after strenuous exercise or continuous exercise for more than 2 hours, the activity of NK cells will decrease. After stopping exercise, its function will suddenly decline.
In addition, although strenuous exercise increases the gluttony of macrophages, the antigen presenting ability and acquired immune function of T cells will decrease. It is considered that every moderate exercise can promote the immune monitoring function of human body to a certain extent, and it seems to reduce the risk of infection for a long time. What is moderate load exercise? Strictly speaking, everyone's physical strength, lifestyle and mental energy are different, so we can't generalize.
Basically, as long as you breathe smoothly during exercise and make your body sweat a little, another indicator is that the heartbeat index is controlled at 1 min and 90- 120 times. Fitness Qigong inherited the ancient idea that people should exercise moderately, and chose fitness Qigong which was proved to be low-intensity and medium-intensity exercise by experiments. Low-intensity and moderate-intensity exercise is beneficial to improve human immunity. Therefore, it can be said that health qigong exercise is beneficial to improve human immunity. 2 The relationship between relaxation and immunity Professor An Shi of Japan, an internationally renowned immunologist, found that the disorder of autonomic nerve will affect the balance of lymphocytes and granulocytes in white blood cells, thus reducing human immunity and leading to diseases. He called this discovery "the law of autonomic innervation of white blood cells."
Autonomic nerve has sympathetic nerve and parasympathetic nerve, which is not static. However, when one side is dominant, the function of the other side is reduced and it is in an opposite relationship. The more violent this fluctuation is, the worse people's physical condition will be. If you stay on one side for a long time, your body temperature will drop and your immunity will drop, which will lead to the occurrence of diseases. Sympathetic nerve is a kind of nerve that works when it is active or excited during the day. It will accelerate the heartbeat and breathing, deliver oxygen to the body, raise blood pressure, increase blood flow and constrict blood vessels.
Because of the pressure of hard work, worry and anxiety, sympathetic nerves will prevail. At this time, the adrenal gland will secrete a large number of hormones called adrenaline, which will make blood vessels contract, so that blood flow disorders will occur throughout the body, and cells will not get the necessary oxygen and nutrition. Parasympathetic nerve is a kind of nerve that works at night, when sleeping, eating and laughing.
It can relax nerves, slow down the activity of the heart, dilate blood vessels and make blood flow in large quantities. Fitness qigong emphasizes relaxation and quietness, and its movements are simple and easy to learn. Therefore, practitioners can quickly enter a relaxed and quiet state, and by maintaining this relaxed and quiet state, parasympathetic nerves are given priority, thus relieving stress and improving human immunity.