Long-term in the air-conditioned room should pay attention to diet and health and joints and other parts of the warmth, often open the window ventilation, increase air humidity, is conducive to health. Long-term in the air-conditioned room if you do not pay attention to health, easy to cause caused by cold stagnation or dry mouth leading to fire, causing joint pain, colds, headaches and so on. Summer blowing cold air should pay attention to diet, eat less or do not eat ice-cream, cold drinks, watermelon and other cold food, drink more warm water or brown sugar ginger water to replenish water; blowing warm air less spicy, greasy food, such as chili peppers, barbecue, etc., to avoid causing fire. Long-term in the air-conditioned room should pay attention to joints, abdominal warmth, such as shoulders, knees, abdomen covered with a small blanket or shawl, to avoid the cold wind of the air-conditioning is facing the human body, and to appropriate exercise. During the day, windows should be opened frequently for ventilation to remove harmful indoor germs and prevent respiratory infectious diseases. If the indoor air is too dry, the humidifier can be used to increase the humidity of the air. Long-term in the air-conditioned room of the crowd pay attention to the air-conditioning temperature should not be too high or too low, in order to the human body feel comfortable as appropriate, so as not to cause adverse consequences.