Why Do We Have Saliva?

Описание: Mmmm! The smell of a batch of cookies straight out of the oven is enough to make your mouth water! But have you ever wondered why your mouth waters?! Jessi and Squeaks are here to tell you all about saliva and the many ways it helps you enjoy those cookies!
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SOURCES:
https://www.ncbi.nlm.nih.gov/pmc/arti...
https://www.webmd.com/oral-health/wha...
https://www.unc.edu/courses/2008ss2/o...
http://journals.sagepub.com/doi/abs/1...