Vasoconstriction: Cold nose, fingers and toes are the body's mechanism to warm the core of the body by taking some blood circulation away from the periphery. This occurs in people with cold intolerance and if it is a significant problem for you, you can get checked for being too thin, anemia, underactive thyroid, low blood sugar,etc. Most of the time it is just a nuisance in otherwise normal people,however.
Answered 3/10/2018
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