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Pascalwb t1_iz9dt8p wrote

This is same in Europe and many other places. Older people saying to dress warm because you will get ill. Of course you don't get ill from the cold itself, but it does not help if your body is cold and has to work hard to stay warm.

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303elliott t1_iz9hbfc wrote

This is a little different. In the US they have the same belief, and there's a lot of evidence that staying warm actually does prevent getting sick because your body isn't wasting energy on extra metabolism, energy which could be instead used on your immune system. His belief was strictly about inhaling cold air. No open windows at night, no going out without a scarf covering your mouth.

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