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CNN
@cnn.com

Multiple times a day, without us even noticing, the nostrils naturally switch between a dominant nostril for airflow. This process is called the nasal cycle and it plays an important role in the health of our nose.

cnn.itThis is why you only breathe out of one nostril at a time | CNNOne of the most bothersome things about being sick or having seasonal allergies is that it makes your nose stuffy and blocked. This makes breathing in through your nostrils frustrating – if not altoge...

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