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
“Bright” is kind of a spectrum though. Sometimes a light is just bright enough that you can trigger a sneeze, but only if you focus on it. Other times that same light will almost trigger a sneeze with focus, but not go completely over the edge. That’s a very annoying feeling when that happens.
Out of all of our senses, smell is the one that triggers memory the quickest. The olfactory nerves in your nose are extremely sensitive and have a direct line to the long term memory part of the brain
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
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Artificial lights absolutely trigger it for me. They just have to be bright.
“Bright” is kind of a spectrum though. Sometimes a light is just bright enough that you can trigger a sneeze, but only if you focus on it. Other times that same light will almost trigger a sneeze with focus, but not go completely over the edge. That’s a very annoying feeling when that happens.
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TIL. I’ve heard a similar thing about certain smells being closely tied with the memory centre in the brain.
Out of all of our senses, smell is the one that triggers memory the quickest. The olfactory nerves in your nose are extremely sensitive and have a direct line to the long term memory part of the brain