Because people need to consume a lot of energy and oxygen when exercising. At this time, in order to supply a lot of energy and oxygen to the muscles, the body speeds up breathing, thus increasing the supply of oxygen, speeding up the heartbeat and increasing the supply of blood. Oxygen needs to be carried by the blood to run. Blood can not only supply oxygen, but also supply energy. Of course, when exercising, the main energy is not blood sugar, but muscle glycogen. However, muscle glycogen also needs oxygen. At this time, the blood that transports oxygen has to speed up blood circulation and supply a lot of energy to the muscles. It needs to decompose substances in the body to produce energy. When these substances decompose, they produce a lot of energy and release a lot of heat. At this time, the blood not only runs fast, but also contains a lot of heat. When the blood flows through the skin, the blood containing heat dilates the blood vessels in the skin, so it begins to sweat. At this time, the blood vessels dilate and the blood flow is fast, so you will sweat a lot. At this time, the acceleration of heartbeat and breathing, the expansion of skin blood vessels and the stimulation of neuroendocrine all play a role at the same time, which strengthens the catabolism or energy metabolism of the whole body. Therefore, the muscles and other moving organs of the body are running at high speed, which will release a lot of heat and expel a lot of waste and sweat. This is the normal response of the body to external adaptation. It is the result of the interaction of various regulatory abilities of the body.

1 1 | Enthusiastic users | 2014-1-2613: 40