Waterpipe smoking is increasing among adolescents.
We characterized tweets from Twitter posts relating to waterpipe smoking for a 1 week period in 2014.
Over half (59%) of all tweets were positive about waterpipe smoking.
Twitter users described: where they smoked waterpipe, products they consumed alongside waterpipe and who they were with.
The majority of photographs posted alongside ‘#hookah’ had been taken inside and contained nobody or one person.