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Why do we kiss?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)

Since there's no reproductive value in kissing, it makes you wonder why kissing evolved. The purpose of kissing is actually to show trust, since you're exposing the most vulnerable part of your body - your lips and tongue (if you're aggressive) - to another person. Kissing feels so good because your lips have the highest number of nerve endings of any body part besides your genitals.

YOU: Being Beautiful: The Owner's Manual to Inner and Outer Beauty

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YOU: Being Beautiful: The Owner's Manual to Inner and Outer Beauty

Most people think that beauty revolves around such things as lipstick, sweet eyes, or skinny jeans -- all those things that we can see (and obsess over) in the mirror. But the fact is that beauty...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.