What Are the Symptoms of “Air-Conditioning Sickness”?

Air conditioning units, while providing welcome relief during hot summer months, can also cause health problems—especially when individuals spend prolonged periods indoors in air-conditioned environments. This may lead to “air-conditioning sickness,” a condition characterized by symptoms such as dizziness, impaired memory, muscle and joint pain in the limbs, allergic reactions, and sneezing—symptoms that warrant attention. So, what are the specific manifestations of air-conditioning sickness? Below, we address this question.

What Are the Symptoms of Air-Conditioning Sickness?

1. Joint Pain

During summer, outdoor temperatures are high, prompting people to wear minimal clothing. However, indoor air conditioning often produces excessively cold air. Such low temperatures can trigger rapid vasoconstriction and impair blood circulation, leading to joint damage, cold-induced discomfort, and pain. Common manifestations include stiffness in the neck and upper back, lower back and limb pain, and coldness or numbness in the hands and feet. Additionally, cold exposure may adversely affect ovarian function, potentially disrupting ovulation and causing menstrual irregularities or abdominal pain.

2. Dizziness and Headache

Dizziness and headache are common neurological imbalances caused by air-conditioning sickness. Beyond increasing susceptibility to the common cold, air conditioning can significantly impact brain health. Naturally occurring negative ions in ambient air help suppress the central nervous system and alleviate mental fatigue. However, air conditioners tend to absorb excessive negative ions, resulting in an overabundance of positive ions indoors. This imbalance between positive and negative ions disrupts normal neurological function.

3. Allergic Reactions

Although indoor air feels cool, humidity levels are often excessively low—potentially irritating the mucous membranes of the eyes and nose. Moreover, dry environments foster the survival and proliferation of bacteria and viruses. When individuals experience dryness in the nasal passages or throat, they should be especially vigilant against viral invasion. Simultaneously, dust and dust mites accumulate indoors due to poor ventilation, placing individuals with allergic constitutions at heightened risk for allergic reactions. Furthermore, mild cases may present with coughing, sneezing, and rhinorrhea—typical upper respiratory tract infection symptoms—while more severe cases induced by air conditioning may progress to lower respiratory tract infections, including pneumonia.

The above outlines the primary symptoms associated with air-conditioning sickness. We hope this information proves helpful.