A report published online on Monday says the stunt may leave a person with scarred tissue, common in lung diseases like pulmonary fibrosis. The report will also be published in an article in the May edition of the Pediatrics Health Journal.
The cinnamon challenge continues to be active, with Twitter mentions peaking at nearly 70,000 per day in January 2012. According to the American Association of Poison Control Centers, the number of calls to poison control centres about teens doing the prank "has increased dramatically," from 51 in 2011 to 222 last year.
If your house is full of teenagers, be on guard. Though it may sound funny, keep track of your cinnamon--It could save your child's health or life.