2. The rapid change of heat and cold will cause the blood vessels in the stomach to contract suddenly. If the frequency is too high, it will cause digestive and absorption dysfunction, leading to indigestion or other diseases.
3. After exercise, the throat may be congested, and excessive cold stimulation will cause sore throat and hoarseness.
You can't drink water immediately after strenuous exercise, because thirst is not really short of water, because muscles need more oxygen and nutrition during exercise. The transport of carbon dioxide and other metabolites requires blood.
In order to ensure the smooth movement, more blood will flow into muscles, joints and other sports organs, while the amount of blood flowing into digestive organs such as gastrointestinal tract will be relatively reduced. Most of the blood vessels here are in a state of contraction, gastrointestinal peristalsis is weakened, and digestive juice secretion is reduced.
This state should be restored half an hour after exercise. If you drink water immediately after exercise, because the gastrointestinal absorption capacity is extremely poor at this time, a large amount of liquid accumulates in the gastrointestinal tract, which directly hinders the activity of the diaphragm, thus affecting breathing and prolonging the time to repay the oxygen debt owed during exercise, which is not conducive to your health.
If you drink a lot of cold drinks after exercise, the situation will be more serious.
We can replenish water before exercise, replenish lost salt during exercise, or drink sports drinks in addition to water half an hour after exercise.
Extended data:
Drinking cold drinks immediately after exercise can easily induce some cardiovascular diseases, especially the elderly with coronary heart disease. If you drink a lot of cold drinks in one breath when you are sweating and thirsty, it may damage your heart function.
During strenuous exercise, people's heart beats faster and capillaries dilate, resulting in low blood pressure and insufficient blood supply to the brain. Drinking cold drinks immediately will cause damage to the heart, spleen, kidney and other organs. This cold stimulation will lead to vasoconstriction, aggravate the insufficiency of blood supply to organs, and lead to sudden death.
In addition, the throat may be congested after exercise, and drinking too strong cold drinks will cause sore throat and hoarseness. After summer exercise, it is better to use "heat" to make "heat". After half an hour of exercise, you can have some hot drinks, such as some hot tea. Drinking hot tea can promote sweat glands to relax and sweat, radiate body heat, and completely reduce the temperature of skin surface.
But pay special attention not to drink hot and cold alternately. Drinking cold drinks and hot drinks alternately is not good for gastrointestinal tract, and it is easy to cause gastrointestinal dysfunction.
People's Network-Can I have a cold drink immediately after exercise?