The principal at Huron High School in Ann Arbor is alerting parents to a hazardous game being played by teens called the, "Cinnamon Challenge".
Arthur Williams sent an email to parents Tuesday, after a local teen was hospitalized for several days after participating in the dare.
The cinnamon challenge involves trying to swallow a spoonful of cinnamon in under a minute, and it has become a popular YouTube and Facebook video upload for participants.
Health officials say the activity can cause coughing, choking, vomiting, and in extreme cases, collapsed lungs.