Why Do We Have Saliva?

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! ---------- Hi there! We at SciShow want to learn more about you and your opinions! If you have time, please take a moment to fill out this survey: https://www.surveymonkey.com/r/SciShowSurvey2017 Thank you! ---------- Love SciShow Kids and want to help support it? Become a patron on Patreon: https://www.patreon.com/scishowkids ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow SOURCES: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3312700/ https://www.webmd.com/oral-health/what-is-saliva#1 https://www.unc.edu/courses/2008ss2/obio/720/001/2008_Readings/070308_saliva_review.pdf http://journals.sagepub.com/doi/abs/10.1177/00220345870660S203?journalCode=jdrb