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Boogers "happen" when your nasal mucus combines with dirt and debris you breathe during the day. Its also known as Mucus (mew-kus) Without it, infections would be far more common When you breathe in air through your nose, it contains lots of tiny things, like dust, dirt, germs. After this stuff gets stuck inside the nose, the mucus surrounds it and some of the tiny hairs inside the nose called cilia (sih-lee-uh). Traps the dust and converts it to booger then you pick it out and hopefully you put it in a tissue

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16y ago

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