The high temperature in Spain has killed 84 people in 3 days. How to prevent heatstroke in hot weather?

Open doors and windows appropriately. Many people think that when the temperature is high in summer, all doors and windows should be opened to cool down. In fact, this idea is wrong. For example, during the day, the outdoor temperature is much higher than the indoor temperature itself, and this If you open the doors and windows of your home at night, the heat from outside will come in, which is not conducive to cooling. Therefore, if you can choose to open the windows in the morning and evening, it will not only help the air circulation, but also help to drive away the heat in the house. It also allows the cool air from outside to come in, so during the day, especially when the sun is too bright, it is best not to open the windows and close the curtains, which will help cool down.