Playing video games could be an unlikely cure for psychological trauma. Researchers at Oxford University hypothesized that playing Tetris after witnessing violence would sap some of the cognitive resources the brain would normally rely on to form memories. A well-structured study in the journal PLoS One confirmed the finding–Tetris acted like a ‘cognitive vaccine’ against traumatic memory. Memory research suggests that there’s about a 6-hour window immediately after witnessing trauma during which memory formation can be disrupted. The results of this study indicate that if you happen to have Tetris or a game like it handy during those six hours, it’s the cure for what ails you.
We should start issuing troops pocket tetris games to play immediately after battles.