Scientists have discovered the key to stopping cravings for cigarettes, food and even sex - playing the Tetris computer game.
The Daily Mail reports psychologists asked dozens of students to report whenever they felt a craving and how strong the feeling was, before reporting back again in 15 minutes.
Half of the participants were given an iPad to play the block-shifting game Tetris between reports, and they found their cravings reduced by a fifth.
The boffins from Plymouth University reckon playing the game works because it occupies the same mental processes used to imagine indulging in the craving.
The week-long study, which also involved Queensland University of Technology, Australia, focused on 31 undergraduates, aged between 18 and 27.