Why Does Air Conditioning Sometimes Trigger Headaches?

By Shubhi Kumar
28 May 2025, 08:00 IST

Air conditioning provides relief on hot days, but for some people, it can come with an unwanted side effect, like headaches. These headaches may be triggered by various factors associated with AC use, ranging from environmental changes to air quality concerns. Tap to read!

Dehydration

Air conditioners suck out humidity from the air and, consequently. It can lead to dehydration, which is a known factor in the triggering of tension and migraine headaches.

Cold Temperatures

Cold air, especially when directed towards the head or neck region. It induces vasoconstriction to produce headaches.

Noise

The constant hum of the air conditioning units leads to sensory irritation. It may result in stress-induced headaches.

Airborne Illness

Polluted AC systems either circulate bacteria or viruses in the air. Thus, setting the stage for respiratory infections that can cause headaches.

Airborne Allergens and Chemicals

Dust, mould, or chemical fumes (from cleaning agents or filters) in AC systems. It can irritate the sinuses and trigger headaches or migraines.

Information credits

This information is sourced from Medical News Today. However, it is advisable to consult a healthcare professional for personalised suggestions.