Hospitals are warning people not to try the boiling water challenge.
The viral stunt has gained popularity in recent weeks due to super cold weather in the polar vortex. The premise is simple, people throw water into super cold air to see if it instantly freezes.
It may looks fascinating, however experts say it's very dangerous.
The boiling water challenge has sent 8 people to a burn center in Chicago, a couple of others have been treated in Minneapolis.