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That’s why some people have a groove between the upper lip and nose.
Gap between the nose and the upper lip is called the philtrum. This area is formed, due to the fact that here are associated three different parts of the human face.
Philtrum plays a vital role in the transfer of moisture from the mouth to the nose and thereby keeps your nose moist.
This helps in the proper functioning of the sense of smell. It is known that the human nose a better carry out the function, when it is wet, than dry.