Eli5 why do we produce a lot more saliva right before we vomit?

Question

I’m currently suffering with a nasty sickness bug and was wondering why my mouth fills with saliva right before I vomit?

NSFW just incase

In: 3025

Answer 1

Any vomit is a mix of acid and partially digested food from your stomach and so as a precautionary measure, your body lines your mouth with enough saliva to dampen the acidic effect of puke in your mouth when it does eventually come out