Why is it that a cut on your finger seems to last for days, but a cut in your mouth is usually healed by morning? There are a lot of factors at play, but 2017 research found one intriguing answer that could benefit more than just your mouth: there's a molecule in your saliva that can help grow new cells.
Should You Kiss It And Make It Better?
How Does Saliva Work?
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Key Facts In This Video
Saliva is necessary to multiple bodily functions. 00:23
Small bumps in our inner lips are actually saliva ducts. 01:24
Saliva contains all of our genetic information. 02:20
Written By Curiosity Staff August 28, 2017
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