The nose is a complex organ, meant not only to help us smell wonderful (or not so wonderful) smells but also to act as a filtration device for incoming air. It might be surprising to learn that your nose secretes, when you're healthy about 32 ounces (.94 liters) of mucus every day. This doesn't tend to make your nose run; instead most of this mucus falls to the back of the throat and is eventually swallowed. These secretions help to humidify, warm up, and filter incoming air, in conjunction with the small hairs in the nose.
So why does a nose run when it is cold? This is an excellent question, which fortunately has a fairly simple explanation. Underneath the glands that secrete mucus, you have huge amounts of tiny blood vessels, which help supply these glands. In cold weather, these blood vessels dilate or grow larger. This means you have more blood supply to your nose, which in part protects your nose from the cold, but it also means your nose will begin producing greater amounts of mucus and liquid. This is also why your nose turns red when it's cold.
Additionally, you will notice a nose run when it is cold because the nose has to work overtime to warm up air that is inhaled, which is coming in at much lower temperatures than normal. You might even notice a nose run when it is cold only by a few degrees. Temperatures just a few degrees below room temperature can make the nose run.
There's also the issue as mentioned above of normal mucus and secretion production. At room temperature, your nose is already producing four cups of fluid and mucus a day. Only so much of it can fall to the back of the throat and be swallowed. When mucus and secretion production increases to warm the air, you will see the nose run when it is cold because you have excess secretions. In other words, some of it has to drip out the front of the nose because you have an excess supply. When you get into a warmer room, a few moments later you won't notice your nose continuing to run because your nose has warmed up and the blood vessels become more constricted.
Observing the nose run when it is cold has led many to believe that cold weather causes colds. This isn't actually the case, and the nose helps through filtration to try to avoid viruses. Of course it doesn't avoid them all. Being out in cold weather for a few minutes may actually help decrease congestion a little since mucus will be naturally released through the front of your nose, allowing you to have a few good blows. Usually, you're just as stuffed up again once you've gone back indoors.
i highly doubt it, but im not an expert
Your nose runs in the cold because water is a byproduct of the cold air being warmed, the excess run=s down your throat and out your nose, about the only way to stop it ( as long as it isnt caused by allergies or a cold ) is to warm the air before it reached your nose by wearing a scarf or something to cover it. For water, nose plugs might help.
Ikun comes from your nose in cold
The Spy with a Cold Nose was created in 1966.
The duration of The Spy with a Cold Nose is 1.55 hours.
If you have a cold, a runny nose with blood can sometimes be normal. If you do not have a cold and it is just the winter season, your runny nose with blood could be due to the dry, cold air.
why should we blow you nose very carefully when you have a cold
a nose. a nose.
your Nose!
If your nose is dry and your throat dry and sore it is heat, if you nose is dripping and wet then it's the cold.
why? do u hav an ugly nose?
Your dog's nose should be wet and cold. A sign that says your dog is healthy and hydrated. A hot nose may mean sickeness, and may need a vet.