This is why you only breathe out of one nostril at a time

The dominant nostril naturally switches multiple times a day. Daniel Hoz/ Shutterstock

One 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 altogether impossible.

But even when you aren’t sick, perhaps you’ve noticed that when you take a deep breath, only one of your nostrils seems to be allowing the air in. Before you panic and wonder if you’re coming down with something...