Want to stave off Alzheimer’s? Then make your mind active, says a new research report. “Those who played board games had a 74 percent lower risk and those who played an instrument had a 69 percent lower risk. Doing crossword puzzles cut the risk by 38 percent. Using the mind actually causes rewiring of the brain, sprouting new synapses – it may even cause the generation of new neurons. So psychology trumps biology.”