You've probably seen YouTube videos of the cinnamon challenge, where someone tries to swallow a spoonful of cinnamon, and they wind up coughing, sneezing, and gagging.

A new study found that if you inhale the cinnamon, it could cause lung disease like emphysema.

Last year, poison centers received 222 calls from people who tried to swallow cinnamon and 31 kids were put in the hospital.

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