What is the concept of temperature 40 degrees?

40 degrees has exceeded the limit of human tolerance, which may cause fatal accidents. The hot weather at 34℃ is a hurdle. In daily life, whether it is cold or hot, it will cause physical discomfort. People's normal body temperature is maintained at around 37℃. According to experiments in various countries, the comfortable temperature for human beings is 19℃~24℃ in summer and 12℃~22℃ in winter. Therefore, in the hot summer, when the humidity is high and the temperature reaches 34℃, people need to pay attention.

1, electric fan cooling

Electric fans can promote air circulation. When the ambient temperature is higher than the body temperature, air circulation can not directly reduce the temperature, but can improve the evaporation efficiency of water. Evaporation of water will absorb a lot of heat, so the temperature can be reduced. When the human body sweats, it will produce a lot of water, so blowing an electric fan can cool down. When cooling with an electric fan, you should add more water to promote sweating.

Step 2 Sprinkle water to cool down

Because water evaporation can absorb a lot of heat and achieve the effect of cooling, it can also be cooled by sprinkling water. However, it should be noted that although sprinkling water can absorb a lot of heat, the ground temperature is very high, and it will feel hotter after sprinkling water, so it is necessary to sprinkle water in the place where the air circulates, so that the heat can be quickly dissipated and the effect of cooling down can be achieved. But also avoid direct sunlight, so as to avoid the ground heating up continuously, and the cooling effect is not great.

3, diet cooling

All of the above are cooled by external means, or by eating some cool fruits, drinks, ice cream and other foods. These low-temperature foods will absorb a lot of heat from human body after eating, which can make people feel cool. If it is fruit, drinks and other food, you can soak it in cold water for a while before eating, so that the effect of clearing away heat and relieving summer heat will be better.