Vomit.
It might be wise to look away now if you are eating or have a weak stomach, but scientists have discovered that ingesting bogies is good for teeth, and overall health.
Scientists at a number of universities including Harvard and Massachusetts Institute of Technology (MIT) say parents should not discourage their children from picking their noses because they contain ‘a rich reservoir of good bacteria.’
Eating snot can also prevent bacteria from sticking to teeth, according to the article published in the journal of the American Society for Microbiology.
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