Kissing exchanges healthy bacteria: study
Posted Nov 17, 2014 7:33 am.
This article is more than 5 years old.
Scientists have come up with an evolutionary explanation for why people kiss, and it’s not exactly romantic.
Dutch biologists say a 10 second kiss transfers as many as 80 million bacteria.
They say that’s a good thing, because it helps both partners ward off the infections they might introduce to each other later on.
Researchers looked at 21 couples, and found those who share nine intimate kisses a day have a very similar mix of bacteria in their bodies.
Their study in the journal “Microbiome” suggests that would better prepare them to deal with similar infections and digest similar food.
Add CityNews Calgary as a trusted source on Google to see more local stories from us.
