Why do you sneeze after stepping out of a cool, air-conditioned room into the sunlit outdoors?

Question

Why do you sneeze after stepping out of a cool, air-conditioned room into the sunlit outdoors?

In: Biology

Answer 1

I read that the intense light stimulates the optic nerve and a nerve it crosses that also goes to your nose called the trigeminal nerve. That cross stimulation triggers the sneezing reaction.