Not all memories are equal. At least that is what researchers at the Karolinska Institute in Sweden have discovered. When someone has a traumatic experience, a car accident for example, the memories of that moment, that car accident, become a source of distress. Psychologists call these “intrusive memories”. The researchers at the Karolinska Institute took a new and unique approach to try and improve these memories by playing Tetris. Yes, Tetris. Traumatic memories are predominantly visual, as is playing Tetris, so when victims play the game, it blurs their intrusive memories. These patients experienced 62% less than the average number of intrusive memories than those who didn’t play Tetris.