Researchers have determined that playing Tetris minimizes the mind's tendency to flash back to memories of traumatic events
If you’ve seen something you’d prefer to forget, then playing Tetris might be just what you need – provided you do it within six hours. That’s the conclusion reached by a team of psychiatric researchers from Oxford University, led by Dr. Emily Holmes. In a study involving 60 test subjects, it was found that people who played the video game within six hours of viewing traumatic images had less of a tendency to experience flashbacks of those images afterward. It all has to do with the way in which the brain processes experiences.