NHS doctor and popular TikToker told viewers their noses are constantly having an "erection" and delved into the science behind it.In a clip, surgeon Dr Karan Rajan says people have a "dominant" nostril but it is swapped around every couple of hours.When you breathe out through your nose, you will probably feel the warm air coming out of one side rather than both at the same time.Dr Karan shows a diagram of the "nose erection" and says: "Let me tell you about nose boners and why you get one all the time."At any given moment, you have one dominant nostril where most of the air goes in and out and less goes through the other one."Every few hours your autonomic nervous system switches up which is the dominant nostril."The opening and the.
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