Apparently too much air conditioning can be a bad thing. According to Read and Digest Health, reliance on air conditioning for long periods of time can cause damaging effects ranging from annoying to dangerous. These include dehydration, allergies, lethargy and headaches. In addition, serious ailments such as respiratory problems can be caused by air conditioned spaces. Maybe even Legionnaires’ disease, which is a form of irregular pneumonia caused by any type of Legionella bacteria.
People who spend a lot of time in places that are air-conditioned tend to crop up much more upper respiratory symptoms in the eyes, nose, and throat compared to those who spend time in non-air-conditioned places. The symptoms commonly included are a nasal blockage, a dry throat, or even rhinitis.