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Do YOU sneeze in the sunshine? Your DNA may have a single letter difference, researchers find

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Sneezing when going from a dark room to bright light has a genetic basis, researchers have found.

The condition, called photic sneezing, affects about one in four people and has been traced to a single letter change in one spot in our DNA.

Despite these findings however, researchers still don't know why the condition evolved in the first place.

 

Source: Dailymail