The birth of air conditioners has made people no longer fear the summer heat. In today’s cities, air conditioners are almost ubiquitous in people’s homes, supermarkets, subways, and offices. People use artificially made coolness to change the temperature of summer completely. “The air conditioner brings comfort to people, but also quietly brings air conditioning disease to people. The so-called air conditioning disease, there are two levels of meaning; one is the narrow sense of air conditioning disease, due to the temperature is too cool or air occlusion, resulting in short-term symptoms similar to the cold, such as nasal congestion, sneezing, dizziness, tinnitus, fatigue, memory loss, as well as some skin allergies, skin tightness and dryness, etc.. The second is the broad sense of air conditioning disease, due to human factors blocked millions of years of human to spring and winter, cold and summer, the natural environment of the four seasons of temperature change to make adaptive adjustments. In summer, everything grows vigorously, and the stage of life is full of colors. Summer is the season for human consumption, metabolism, toxin excretion, qi circulation and thorough cleaning. Man-made nature also changes the natural body: feeling comfortable but the body quality decreases, consumption decreases but fat increases, sweating decreases but the skin changes, heat dissipation decreases but internal heat stagnates, and so on and so forth. In the long run, the decline of human adaptability to nature or defense mechanisms, the emergence of survival crisis is not a sensationalist. Prevention of air conditioning disease, to stop enjoying the cool is not a smart move, just understand some sense, know some common sense, make good use of, and stop. Treat the air conditioner one is soon to be, every day should regularly close the air conditioner to open the windows, increase the ventilation, so that the room to maintain a certain amount of fresh air. The best way to dissipate heat in summer is to sweat naturally, and have a certain amount of time outdoors every day to retain the adaptability to nature is a problem that contemporary urbanites cannot ignore. Secondly, it is not low, the air conditioning room temperature and the natural outdoor temperature should not be too large, to not more than 3-5 degrees is appropriate. Sleep at night is best not to use air conditioning, sleep off the air conditioning is safer, before going to bed in the outdoors, which helps to promote blood circulation. Other attention should be paid to go out from the air-conditioned environment, first in a shaded place to adapt to a few moments before moving to the sunlight; work and study in the air-conditioned environment, do not let the cold wind from the vents blow directly on the body; sweat dripping when it is best not to blow cold air directly, cooling too quickly prone to morbidity; air-conditioned closed environment in particular, indoor smoking is strictly prohibited; workplace attention to clothing, should meet the warmth requirements in the air-conditioned environment.