Kissing for science

From NPR, apparently when we kiss, we can transfer ab 80 million bacteria to our partner!!!  This is based on a new study out in the journal Microbiome, but why does this matter?

Kort and colleagues believe this vigorous osculation could be a way to change your microbiome. “There’s a number of studies that show that it’s healthy to have a high diversity of microorganisms in your mouth,” says Kort. 

Not to mention, kissing could potentially help donate beneficial microbes by an “oral microbiome transplant”.

Maybe we could transplant the mouth bacteria of a person who doesn’t get cavities to one who often does, says Andrea Azcarate-Peril, a microbiologist at the University of North Carolina School of Medicine who did not work on the study. There may even be evolutionary reasons for the swap, she says, like, “when a mom of a newborn kisses a baby, it may actually be sampling the microbiota.”


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