why do we sneeze when we see bright light?
In: Biology
Autosomal Dominant Compelling Helio-Ophthalmic Outburst (ACHOO) syndrome
We don’t really know. My favorite theory is that those of us with ACHOO have optic nerves that developed too close or intertwined with our trigeminal nerve. So when the optic nerve is overstimulated, the nerve signals pass to the nasal cavity instead.
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