Why do we get runny nose when we go out in the cold?

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Why do we get runny nose when we go out in the cold?

I know that cold causes the blood vessels to narrow. However, when I take a walk out in cold weather, my nose starts dripping which should not happen if the blood vessels are narrowed. Any explanation ?

2007-02-01 08:43:32 · 2 answers · asked by bliss22 2 in Health ➔ Other - Health

2 answers

the above is true, but also, when your vessels contract, they squeeze out excess moisture, that and the irritation of the mucous membranes by the cold causes them to ooze fluids too.

2007-02-01 08:51:32 · answer #1 · answered by essentiallysolo 7 · 1⤊ 0⤋

your nose builds up with condensation from your warm air from your nose contacting with the cold air, hense your nose becomes moist and starts running

2007-02-01 08:48:45 · answer #2 · answered by JENeylon 1 · 2⤊ 0⤋