Tell me effortlessly.

"heatstroke", as its name implies, means "fever" and refers to various symptoms caused by "heat" inside and outside the body. In other words, it is the phenomenon that "the body produces a high degree of heat energy, but it is difficult to give it away".

Precursors of heatstroke include heavy head, fatigue, yawning, dizziness and dyskinesia of limbs. In severe cases, it will also cause convulsions and insanity, which will increase the body temperature (especially it will climb above 40℃). It is generally believed that the cause of heatstroke lies in the high temperature and exposure in hot weather, but in fact, "humidity" is actually more lethal than temperature.

Even if the temperature is below 30℃ and the humidity exceeds 60%, staying indoors may cause heatstroke symptoms. When the weather is hot, you will sweat. To evaporate sweat, you need heat of vaporization. This evaporation reaction will take away the body's heat and lower the body temperature. In short, "perspiration" and "heat of vaporization" are responsible for regulating people's body temperature in the heat. In a high humidity environment, even if you are sweating all over, it is difficult to make sweat evaporate, and you can't take away the evaporated heat to fully cool down, which is prone to "heatstroke".

I was really shocked to hear the news report that someone was sent to the hospital for rescue because of "heatstroke" indoors at 28℃ About 50 years ago, there was no air conditioning in Japan at that time. Every summer, the indoor and outdoor temperatures casually exceed 30℃, and even reach about 35℃. But there were almost no cases of "heatstroke" at that time. Because at that time, as long as the weather is hot, you will sweat all over, and then you will cool down by consuming vaporization heat. This skin reaction is very strong.

Recently, the weather is hot, and people stay in air-conditioned rooms for a long time, so the chances of sweating are less, and people's temperature regulation ability is gradually getting worse. For this reason, even at the room temperature of 28℃, it is impossible to fully lower the body temperature through perspiration, leading to "stagnation of heat" in the body and heatstroke.

Western medicine appeals to the public to "drink more water to prevent heatstroke". But the effect of "drinking water to cool down" is certainly worth looking forward to, but if you can't sweat, no matter how much water you drink, you can't regulate your body temperature. Therefore, in order to prevent heatstroke, it is necessary to exercise the body's perspiration ability in advance in daily life, such as full exercise, bathing or sauna. , promote perspiration.

Activating the "aquaporin" inside the skin, that is, the water channel, can promote the evaporation of sweat. It is especially recommended to eat cruciferous vegetables, such as cauliflower, Qingjiang vegetable, watercress, rape flower, white radish and so on. It is helpful to promote the activation of aquaporins. In addition, when eating oolong noodles or buckwheat noodles, you can also add a little more spicy seasoning such as Tang Xinzi, chopped green onion and ginger paste, which can promote sweating.

If someone around you is suspected of "heatstroke", the following measures must be taken:

(1) Loosen your clothes and unbutton your chest to help dissipate heat.

Move him to the shade and lie down.

(3) Use a fan or electric fan to help the head, neck and other upper body cool down.

(4) cool the head and neck with cold water or a towel soaked in cold water.

5] Give him water.

However, it should be noted that human body fluids such as blood, lymph and interstitial fluid are not "pure water". When replenishing water, it is necessary to supplement "salt water" similar to body fluids. For example:

(1) kelp tea and green tea with a pinch of salt or wheat tea (herbal tea).

② Sports drinks containing "salts" such as sodium ions, potassium ions and magnesium ions.

3 sweet wine brewing.

Among them, the composition of sweet wine is very similar to body fluid, containing balanced water, salt and sugar. These drinks must be used to replenish water. In addition, the following views may be full of my personal subjective consciousness, but I suspect that hypothermia in Japan may be the reason for the increasing number of heatstroke cases every year.

After hypothermia, it is not easy to sweat, and the ability of body temperature regulation is also weakened, making the body unable to cope with the hot environment and prone to heatstroke. I listed four reasons for hypothermia, one of which is "excessive water intake". In other words, we can also regard this as a causal relationship between excessive water intake → hypothermia → decreased thermoregulatory ability → easy heatstroke.

This article is excerpted from "Drinking Water to Treat Diseases or Cause Diseases" published by Dongfan in Taiwan Province Province. Life-sustaining method of Ishihara fruit (の) water system "