Is there any way to cool down when the weather is hot?

First, open and close doors and windows reasonably. Many people think it's cool to open doors and windows in summer, but it's not. During the day, the outdoor temperature is high, the doors and windows are wide open, and the sunshine and thermal radiation are accompanied by bursts of hot air, which will make the indoor and outdoor generally hot. If you open the doors and windows for ventilation in the morning and evening when the weather is cool, close the doors and windows during the day, especially at noon, isolate the invasion of outdoor hot air, and draw a light curtain to block the sun and reflect the thermal radiation, you can make the room cooler. According to the actual observation, although the outdoor temperature in Chengdu reaches more than 30 degrees after noon, the indoor temperature can still be kept at about 28 degrees by the above methods. Second, balcony greening, courtyard greening. Planting flowers and trees on the balcony of courtyard greening not only has high ornamental value, but also has the function of regulating microclimate, which will make the air fresh, cool and pleasant. Because green plants can not only shade the sun, but also reduce the temperature by evaporating the water on the leaves. Some data show that planting grapes, morning glory, Parthenocissus tricuspidata and some flowers and plants on the courtyard balcony can reduce the temperature of the attached wall by 5℃ ~ 14℃ and the indoor temperature by 2℃ ~ 4℃. Third, use fans and water evaporation indoors to cool down. For example, after wiping the floor indoors with a wet mop, turn on the ceiling fan to evaporate and absorb heat; You can also put a basin of cold water in front of the fan and turn on the fan to evaporate the water into cool air, which can all play a role in lowering the room temperature. Four air-conditioning cooling five "calm and natural cooling", which is a summary of people's psychological state, should be calm in the hot, emotional stability. Take some small medicine for heatstroke prevention and cooling. For example, cooling oil, Huoxiang Zhengqi water, Ren Dan, ten drops of water, warm powder, wind oil essence, etc. When the weather is hot, you can always apply some cool oil to your temples, head, neck and armpits, including three to five Ren Dan pills, and then drink a tube of Huoxiang Zhengqi water to ensure refreshing. At the same time, it can also help others to relieve summer heat by yourself. Seventh, self-cooling protection should be done in summer. Wear a straw hat, thin clothes and an umbrella when going out. Straw hats can be used to shelter from light rain and sun, and clothes can be put in a helmet when resting to prevent dust and unbearable high temperature. You can put a straw hat on your head after soaking in cold water. The cooling of ice cream, mung bean soup and herbs varies from person to person. It's comfortable to take a bath often. Finally, in the hot summer, the room should be kept clean and tidy, and unnecessary things should be properly collected, so that there will be more space in the room and people will feel comfortable. Don't be messy in the room, which will not only make people feel stuffy and suffocated, but also make people feel annoyed.