Why is your nose the first to be cold when you get cold?
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Not as many blood vessels to carry warm blood to. Your fingers at least have some but quick to freeze up because they’re the tips with a lot more surface area to freeze as well
I believe one of the biggest reasons is that you breathe through your nose. Each breath you inhale through your nose sucks in newer colder air into it, and with the skin on your nose being rather thin with fewer blood vessels it is quickest to get cold. It will still get cold when you breathe through your mouth only, but I think now as fast.
Muscles produce a lot of heat, your nose has very few. It’s also in a prime location to get hit with cold air. It also has very few blood vessels compared to the rest of the face, but mostly the sticky-outy-bit, it has no surrounding tissue to warm it
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