BUT DO NOT FALL FOR THE BS THAT ANY OF THAT PREVENTS ALZHEIMERS. My parents were brilliant people involved in many activities, played games, wrote, did higher order accounting, etc. when they were each struck down with Alzheimers. Keeping your brain active does NOTHING to prevent Alzheimers.
Im afraid your right about Alzheimers its an awful disease, my FIL had it, it was crushing. I do play CIV VI its a lot of fun. Hope I dont get it, but worried for my wife her short term memory has become a problem.