Air condition has become an indispensable part in modern life. It is true that it has brought freshness and comfort to our life. However, at the same time, it also causes some diseases.

If people work or study in the air-conditioned environment for a long time, because of the poor ventilation, they will suffer from nasal congestion, dizziness, sneezing, tinnitus, fatigue, memory loss, and some skin allergy symptoms. In modern medicine this phenomenon is called as "air-condition syndrome" or "air-condition disease."

Because of the different adaptability of each person, so the main symptoms of air-condition disease vary from person to person. The general symptoms include discomfort, fatigue, weakness, limb muscle and joint aches, headache, back pain, and so on. In general, there are three groups of people who are most susceptible to such kind of disease, including the elderly people, children and women, because the resistibility of their body is relatively very poor.

Following are some ways on how to prevent air-condition disease:
First, when you use the air-conditioning, you must pay attention to the ventilation of the room. Every day, you should regularly open the window, and increase the ventilation, so as to maintain enough fresh air in the room. And it is best to clean the air conditioner once every two weeks.

Second, the temperature between the air-conditioned room and outdoor environment should not be too different, preferably not more than 5 degrees. It is best not to use air conditioning when you are sleeping at night. What's more, before you go to bed every night, you can do some outdoor activities, which can promote blood circulation and prevent the disease.

Third, if you have stayed in the air-conditioned room for a long time, you should go outside and take some activities. And you should also drink plenty of water, so as to speed up the metabolism in the body.

Fourth, when you walk out from the air-conditioned environment, you should stay in the cool environment for a while. You should not expose yourself under the sun until your body has adapted to the outdoor temperature.

Last but not the least, diet is also very important to prevent this kind disease. In the closed room, the heat in the body can not be discharged out, which will easily lead to disease. Celery is rich in vitamins, trace elements, protein, mannitol, dietary fiber and other ingredients, which can clear the heat in human body, and promote gastrointestinal peristalsis.