A member asked:

Is it true that the mouth contains more bacteria than ones anus? and if so why do we kiss and exchange salyva?

A doctor has provided 1 answer

Good question: The kiss probably evolved for the very purpose of spreading germs. Yes, the mouth is filthy full of microbial life. Bacteria. Viruses. But you can think of a kiss as a vaccination of sorts. Spreading small, benign quantities of these microbes that may help to boost immune systems and/or foster good normal bacteria growth in the gut. For more, read here: http://tinyurl.Com/ylespud.

Answered 3/18/2019

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