Why Do We Have Boogers?

Answer

One of the several purposes of this substance is to catch airborne contaminants. It keeps nasty things like dust and germs out of your lungs.
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1 Additional Answer
In humans noses, there is a substance called mucus. This mucus is important because it filters out dirt and other materials from the nose. Buggers are formed when bacteria is caught by the mucus. It is not advised to eat your buggers because you will put those contaminants into your body.
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