You might already be feeling dizzy due to dehydration, and when dehydration is combined with the noise produced by air-conditioners, it could lead to severe headaches.
If people inside an enclosed air- conditioned space already suffer from allergies and asthma, air conditioning could make things worse for them.
Due to the circulation of state air inside an air-conditioned space, people inside that enclosed space could suffer from a variety of respiratory issues.
Technological advances have made modern air-conditioners extremely quiet, but there are many people who still use old window air conditioners that produced a lot of noise.
Your air conditioner works hard to keep the heat out, but it won't keep pollutants and debris out of the air—at least, not without the help of a filter.
There have been many such cases where people have been infected by viruses and harmful bacteria spread in building through the air conditioning system.
If you remain in an air-conditioned space for long hours and follow it up by remaining outside in the sun, you could quickly develop dry and itchy skin.
Air Conditioning removes too much moisture from the air, it could cause the air to become extremely dry, and that could lead to dehydration.