Why can body temperature increase improve immunity? This is because when the body temperature is high, it will activate more immune cells in the human body, thus better annihilating the invading pathogenic microorganisms and maintaining the health of the body.
Human immunity mainly depends on white blood cells, most of which exist in human blood and lymphatic vessels, and only a few exist in tissues other than blood vessels and lymphatic vessels. When bacteria invade the human body, white blood cells will deform, cross the capillary wall, reach the site where the bacteria invade and engulf the bacteria. Rising body temperature can speed up blood flow, so the speed of producing white blood cells will also be accelerated, so bacteria can be destroyed faster. Call in large forces for support.
At the same time, because the body temperature rises, the activity of enzymes in the human body will also increase. As we all know, enzyme is a very important catalyst in our body, which dominates our metabolism, nutrition and energy conversion, but temperature will affect the activity of enzyme. At low temperature, the activity of the enzyme will decrease, and may even lose its activity.
Therefore, in a certain range, the higher the temperature, the higher the enzyme activity, so that our metabolic ability will be stronger and our immunity will be higher.
Why don't humans evolve into high-temperature bodies? The temperature of human body can be divided into two parts: body surface temperature and core temperature. The surface temperature is greatly influenced by the environment. For example, Leng Xia is hot in winter, and the core temperature is relatively stable, but it will fluctuate with age, day and night, and exercise, but the fluctuation range is generally less than 65438 0℃.
When we measure our body temperature, we actually measure the core temperature. When we measure the temperature under the armpit, the upper arm is close to the chest, and then a closed cavity will be formed. With the continuous diffusion of body temperature, the temperature in the cavity will be close to the core temperature after 5 to 10 minutes. Normally it is between 36 and 37.4 degrees Celsius. Therefore, the body temperature cannot be raised casually.
Moreover, the increase of body temperature will not only bring benefits, but also accelerate the metabolism of substances, interfere with the normal physiological functions of the digestive system and nervous system, cause water loss in the body, bring symptoms such as loss of appetite, and even reduce the body's anti-infection ability.