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Sunday, September 16, 2018

Photic Sneeze Reflex

Do you often sneeze when exposed to a bright light, such as stepping out of a dim movie theater on a sunny day? Then you’re one of the 18-35 percent of people that have “photic sneeze reflex”, a genetic predisposition to sneezing intensely after sudden exposure to bright light.

from How-To Geek https://ift.tt/2Nh8nsE

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