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What are the misunderstandings of summer health care?
1: shirtless and cool

In the sultry dog days, there are always people who like to go naked, thinking that it is cool, but it is not necessarily so. From a physiological point of view, human body temperature regulation depends not only on skin evaporation, but also on skin radiation. According to the measurement, in the environment with the temperature of 18-28 degrees Celsius, 70% of human body temperature depends on skin radiation, convection and conduction. When the temperature reaches 35 degrees Celsius, the body temperature mainly depends on skin evaporation to dissipate heat; When the temperature continues to rise, the skin can not only radiate heat, but also absorb heat from the external environment. Therefore, if you go shirtless at this time, it is easy to absorb heat. You will feel more sultry, not cool.

2. It is not advisable to stay up late in summer.

Some people think it's better to sleep after the temperature drops in the middle of the night in summer and get up again the next night. But according to the human body? Biological clock? The best sleep time is 22-23, and 5-6 am is the biological clock? At this time of orgasm, it is best to get up. So in summer, everyone still has to live on time.

3. Open the doors and windows for ventilation and cooling.

In hot summer, the outdoor temperature is very high, and sometimes even the wind outside is hot. At this time, opening doors and windows will make the indoor and outdoor temperatures as high. Therefore, if the outdoor temperature is very high in summer, the doors and windows should be closed before the highest temperature 14 to keep the indoor temperature at a low level, and then the doors and windows should be opened at night to make the room cooler.