Anyone who's played Tetris – i.e. everyone ever – can attest to its soothing qualities as they stack block after block aiming to create those lovely lines. Now a new study suggests that playing the game isn't just good for fun, it may help to reduce the symptoms of post-traumatic stress disorder.
Scientific journal PLoS ONE suggests that playing Tetris can reduce the intrusive flashbacks that often accompany post-traumatic stress disorder. The same couldn't be said for all games, with the study finding Pub Quiz actually lead to an increase in flashbacks.
The healing power of Tetris lasts for hours after the initial trauma, with the study saying it has helped in the search for a "post-trauma cognitive vaccine".