With hindsight, I would say that the first indication that my dear MIL was going to fall victim to Alzheimer's was her total loss of her sense of smell. I think she was in about her late sixties then. She lived until 93, going into care in only about the last three or four years of her life, having been widowed some 20 years before.
Have found this thread very interesting. Had to smile at Gigi's "white knuckle ride" description, as this was how Brian was driving not long before his stroke in 2007 and I chose to drive us around instead, leaving him to drive when he took himself off to golf. Love, Nan XXX