Air conditioning is used in summer, and many people are used to setting the temperature at a certain value. In fact, constantly adjusting the room temperature can keep people's physiological temperature regulation mechanism? Nervous? , so as to improve people's adaptability and self-protection ability, so as to avoid catching colds or other indoor diseases. Of course, when the air conditioner is used for adjustment for the first time, the temperature change range should be controlled between 3 degrees Celsius and 5 degrees Celsius; After half a month, the amplitude can be gradually increased to 6 degrees Celsius to 10 degrees Celsius. Don't change the temperature too suddenly, and it is advisable to adjust it at 1 Celsius to 2 Celsius every time.

Myth 2: It's best to be shirtless on a hot day.

In the midsummer heat, many people like to go shirtless, thinking that it will be cooler, but it is not. Research shows that when the temperature approaches or exceeds the human body temperature (about 36.8℃), shirtless is not only not cool, but even hotter. Because shirtless can only increase the radiation and heat dissipation of the skin when the skin temperature is higher than the ambient temperature, and the temperature in midsummer and hot summer is generally close to or higher than 37℃, the skin can not dissipate heat, but will absorb heat from the external environment, so playing shirtless will feel hotter.

In addition, in hot weather, the heat dissipation of human body mainly depends on the evaporation of sweat, which requires the existence of sweat on the skin surface. In hot weather, shirtless, due to the increase of skin heat, sweat is constantly secreted from pores, which makes small sweat converge into larger sweat drops before evaporation, and the sweat drops easily flow, thus greatly reducing the speed of evaporation and heat dissipation.

Myth 3: Open 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.