Light and Sneezing

I’d never heard of this until the other day but apparently 18-35% of the population has something called Photic Sneeze Reflex. A friend first brought this up when she mentioned that she sneezes when going from darkness to light. Apparently, the nerve that controls sneezing is very close to the nerve that controls visual impulses to the brain.

In one story about it, it says it is an inherited trait so kids have a 50/50 chance of having it. Not surprisingly based on when this came up in a meeting this week, some of the people thought this was normal (since they do it) and others thought it was crazy (since they’d never experienced it).

The other thing I learned was that some people with it use bright light to trigger a sneeze which is on the verge but not happening.

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