And they swap as I turn over. 
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Fun fact: your nostrils actually split the work!! Every 2 to 4 hours, you will notice the other nostril has taken over. The reason for this is not fully understood, but the best thought is the swapping allows the cilia a "break", and allows the membranes top avoid being dried out.
Rignor
Level 7
Dec 27, 2022
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