Cinnamon Challenge: Teenagers upload videos of themselves swallowing a spoon of ground cinnamon. This can lead to asphyxiation as the spice dries out the mouth.
Pass Out: This highly dangerous craze sees a person intentionally deprive themselves of oxygen.
Bread Soda and Vinegar Bomb: A risky homemade concoction where people film the chemical reaction of the ingredients in their friend's mouth.
Head Hill: An Irish codename for a teenage meeting place where sexual acts are filmed while alcohol is being consumed.
Carbonated Drink and Mints Bomb: Participants fill their mouth with mints and try to drink two litres of a fizzy drink, this hazardous craze can also lead to asphyxiation.
Smashy Happy Hour: Popular in the US, participants drop an electronic device on to the ground the smash it while they binge drink. JF