In hot summer, the utilization rate of air conditioning in offices and families is greatly improved. While enjoying the coolness and comfort brought by air conditioning, do you also feel the discomfort brought by the dryness of air-conditioned rooms? Many residents who use air conditioners say that sleeping with air conditioners on for one night feels like dehydration. "Dry throat, dry eyes and chapped lips. In short, it is very uncomfortable. " How can we sigh the air conditioner and avoid this extremely uncomfortable symptom? Folk prescription: increase air humidity Now there are two folk prescriptions to solve the drying problem of air-conditioned rooms for your reference, the main purpose is to increase room humidity. The experiment shows that the actual effect is not great, and it can not solve the indoor drying problem well. 1. Put a basin of water or wet the floor in the air-conditioned room, and put a basin of cold water in the room before going to bed; Or, wipe the whole room floor with a wet mop to increase the air humidity. 2. Keep some green aquatic plants such as bamboo and begonia indoors, or keep goldfish, and slowly evaporate water to relieve the dryness of the air. The doctor suggested that it is best not to turn on the air conditioner for the night. According to Dr. Liu from the Department of Respiratory Medicine of Guangzhou First People's Hospital, the key to physical discomfort caused by turning on the air conditioner all night in summer is that the air conditioner has a powerful dehumidification function, which leads to abnormal dry air in the air-conditioned room. He said that the indoor air quality standards promulgated by the state require the humidity of air-conditioned rooms to be 40%~80% in summer, but according to the testing of relevant departments, the actual humidity of air-conditioned rooms in summer is as low as 20%~30%. Too low indoor humidity will have extremely adverse effects on human mucosal tissue, and bacteria and viruses are easy to invade and spread. The respiratory tract, eyeball and skin are mainly affected seriously. Some people will have symptoms such as dry mouth, nose and throat discomfort, airway fire and inflammation. , especially susceptible people such as the elderly and children; At the same time, drying will make the water content of human body out of balance, the skin lacks elasticity and luster, and accelerate the aging, tightness and roughness of cortex; The lens of the eye will feel dry when it is affected by dryness. Dr. Liu said that from a health point of view, it is best not to turn on the air conditioner and sleep all night. If it is too hot to turn on the air conditioner at night, the two remedies mentioned above have certain effects. After all, they can increase air humidity, but the effect is not necessarily obvious. It is best to get up in the middle of the night and open the window for air, or open a few windows to let fresh air in. Secondly, in daily life, you can also take the following measures to avoid the side effects caused by staying in an air-conditioned room for a long time. 1. Replenish water in the body: The method of replenishing water is very simple. For example, drinking 1000~2000 ml of water every day can basically meet the human body's demand for water. Need to be reminded, don't drink too much. The most suitable drinking method is "a small amount of regular drinking", that is, drinking water several times, each time in moderation. You can also supplement water and nutrition by drinking more milk and soup; Eating more fruits is also a good choice. 2. Increase air humidity: At present, some families choose humidifiers to increase humidity. Need to be reminded that the use of humidifiers is not suitable for everyone, there is an adaptation problem. People who are old or have chronic diseases and don't like to go out are relatively suitable for using humidifiers. People who often go out and stay in air-conditioned rooms should use humidifiers in moderation, otherwise they are prone to respiratory diseases due to the large contrast between indoor and outdoor temperature and humidity. The folk method is to sprinkle water or put basin water on the ground, which is also a simple and practical humidification method.