It may not be in time for Masaru Hori (see Risky business) but car-maker Toyota is reported to be developing a car capable of helping older drivers not to make mistakes. Also working on the project is Prof. Ryuta Kawashima, who helped develop Nintendo's "Brain Age" games. As reported in The Sydney Morning Herald earlier this month "Ultimately, we hope to develop cars that stimulate brain activity, so that driving itself becomes a form of brain training," Kawashima said.
But for those of us who want to stat brain stimulation now as part of an anti-dementia strategy, word is that doing things with "your other hand" can help keep gray matter supple. (Your other hand = left if you're right-handed and right if you're left-handed.)