If we only breathe through one nostril at a time, why do we have two?
In: Biology
This nasal cycle is controlled by the autonomic nervous system which also controls things we don’t think about like heart rate and breathing. Our bodies deliberately send more blood to an erectile tissue between the two nostrils to increase its size and direct the air flowing through one of the nostrils. After a few hours, the airflow switches to the other nostril.
Why do we do this? Some scientists believe the alternating airflow allows each nostril to maintain optimal moisture levels so no one side gets dried out. It may also protect against respiratory infections or allergies.
Others believe it’s tied to our olfaction or sense of smell. It’s possible that the quicker and slower airflow in each nostril optimizes us to the vast range of smells. Some smells take longer to detect and transmit to the brain.
Copied from this article! But it’s pretty eli5
http://www.medicaldiscoverynews.com/shows/616-nose.html
We only breathe through one nostril at a time???
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