You know how when you play Tetris for awhile, even after you stop, you can still see those little falling blocks in your mind's eye? The persistence of Tetris isn't simply an annoying effect of a cleverly designed game, according to scientists. Instead it's a reflection of something deeply positive about our brains. According to a recent study playing Tetris for a few hours a week over a period of months, actually changed the brains of players. Every time you reactivate a circuit, synaptic efficiency increases, and connections become more durable and easier to reactivate. Whenever you do a specific task over and over again, it take up less of your brain power over time. POSITIVITY IS A SKILL That's probably not a shock to anyone who has learned to play the piano, speak a foreign language or even hit a tennis ball roughly where you want it to go. So...
