Go out with a sun hat and sweat for shade;
Keywords brackish water, sour plum soup, hydration prevention;
Prepare enough water before thirst, and the emergency center will provide protection;
Working in a building for a long time, there are few opportunities to bask in the sun;
There are diseases in the heart, lungs, brain and kidney. First of all, we must prevent poor tolerance;
Exposure time should not be long to avoid heatstroke injury;
Self-knowledge, don't try to be brave, do what you can and stay healthy.