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Wait what? I don’t recall doing this. Or do you mean squinting instead of actually sneezing?
No, sneezing, as in the photic sneeze reflex. If I look at the sun by accident I’ll sneeze.
It is more about signal leakage between neurones. The optical nerve is closed to the one controlling sneezing so when the optical is highly excited, it can activate the sneezing nerve.
Source : I have a friend with this and he looked it up once
TIL. I’ve heard a similar thing about certain smells being closely tied with the memory centre in the brain.
