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Some people sneeze when they look into the sun because of Autosomal Compelling Helio-Ophthalmic Outburst syndrome (ACHOO), or photic sneeze reflex (PSR). It happens when the brain misinterprets a ...

There's nothing more frustrating than not being able to sneeze when you feel like you have to let one out. While a big sneeze can be jarring and a little messy, it's completely normal bodily function.