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this post was submitted on 09 Sep 2023
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Asklemmy
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There is a startling amount of people here (most people I know) that believe this. I work in healthcare and we constantly have arguments about the AC in summer for that exact reason. Yeah cold weather can make it easier to catch a cold but it's interesting to see how many people believe that you need to get warm to avoid catching a cold.
Partially true. If you're vitamin A deficient, your night vision worsens and carrots can help with that. But you won't get Minecraft night vision
Isn't AC quite effective at spreading germs though?
That's true as well but you can't store drugs at 35°C. Good ventilation and regular disinfection takes care of the germs.
An ac system with dirty humidifier portions or stagnant water from the condensate system being plugged can start growing things like mold in the wet filthy areas and cause legionnaires disease or other health issues.
A properly functioning ac system just cools and dries the air.
There is a belief that going from hot and humid summer air to cold and dry ac air and back, constantly all day long, can make you sick.
I have no idea if that is true.
A central hvac system could potentially move particles of infectious materials from one room to another but whether that would make someone sick is debatable due to how short lived virus particles are and other factors.
Some commercial systems utilize ultra violet sections and hepa filters to kill and stop airborne contaminants and allergens.
The carrot thing came out of world war ii propaganda which was intended to keep radar gunsites secret.