How and why do we produce saliva?

Our mouths have a lot going on. They have teeth and a tongue and they help us talk and eat. But what about saliva? It seems important, right? How do our bodies know to make it? We asked otolaryngologist Dr. Laura Orvidas to help us learn all about saliva.  Got a question that you just can’t lick? Send it to us at BrainsOn.org/contact, and we’ll help find an answer. See omnystudio.com/listener for privacy information.