Heatstroke is also a disease that is prone to occur in summer. According to experts, from the perspective of traditional Chinese medicine, heatstroke can be divided into three categories: "heat in yang", "heat in yin" and the above-mentioned "emotional heatstroke". Generally speaking, heatstroke actually refers to "yang summer heat". This kind of heatstroke is mostly due to staying in the hot sun for too long, but mostly because of feeling the evil of summer heat and dampness and improper cooling. For example, in the summer when the weather is very hot and the rain is frequent, people will enjoy the cool in the open air, corridors and windy places for a long time, causing dizziness, sometimes cold and sometimes hot, vomiting, diarrhea and no sweat. Middle-aged and elderly people should try to avoid exposure to the sun and rain in summer, or stay in places where the temperature is too high and the air is not circulating. It is not advisable to sit and lie in wetlands after rain. At the same time, avoid wearing wet clothes or clothes that have just been aired for a long time to prevent damp heat from invading the body.