1 doctor weighed in:

How come most of the peoples lips are red?

1 doctor weighed in
Dr. Martin Morell
Internal Medicine - Rheumatology

In brief: Also

Very sensitive and why we kiss.
The area is rich in blood vessels (red) because there are many nerves cell there. Part of it is also to protect you from what you eat in an evolutionary sort of way.

In brief: Also

Very sensitive and why we kiss.
The area is rich in blood vessels (red) because there are many nerves cell there. Part of it is also to protect you from what you eat in an evolutionary sort of way.
Dr. Martin Morell
Dr. Martin Morell
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