Torture your brain for fun? We do it all the time, disregarding the danger of acquiring time-consuming, relationship-destroying addictions (for which I prefer the euphemism “expert status”). What are we doing so recklessly? Crossword puzzles! Sudoku! Riddles! Cognitive-training games like Lumosity!  Some people even succumb to solving Rubik’s cubes, and playing chess!   It’s all […]