Abomag

There are several reasons to runny nose: the nose drop that comes out when it's cold, and snot that must be evacuated with a tissue.

1) The little drop

It's very simple, the nose is at 37 degrees (a little less since it is outside the skull). The contrast warm air - cold air, therefore, causes condensation of moisture from the air, inside the nose. This little gout is therefore nothing else than steam cooled ...

2) Glanders

Glanders is a secretion of the turbinates, which occurs approximately every 20 minutes. This serves to capture bacteria and dirt from the air, in fact as a fly-paper, to prevent them from returning to the lungs. When one falls ill, the cones produce more mucus (mucus) to remove most germs and bacteria as possible.
Be careful not to force blowing the nose, otherwise we increase the irritation of the turbinates, and it may increase mucus secretion.

And stuffy nose?

The cones also have the ability to swell or shrink:

• They shrink for example when the air is in short supply or you make a physical effort, to increase the breathing capacity of the nasal cavity.
• They swell to limit the flow of air, warm when it's cold and / or moistened if dry.

At night, the nostril which is the lowest is always one that gets blocked, not because of glanders, but because of blood down that side of the nose cones and swells more on this side ...

The boogers?

Dried mucus, full of bacteria and dirt ... so do not eat them!