And since I'm already 63, I make it a point to exercise the gray matter every chance I get. LOLOL!
Actually those unfortunate individuals who have Alzheimer's can remember that easily, but they can't remember what they did an hour ago.
Intellectual activity usually keeps the brain going into the old age without much fucntional loss, medical conditions out of our control notwithstanding.
But, I was referring to the quality of human memory in general. Numerous studies have rather conclusively established that human memory is not reliable at all. The scary part is that we pretty much tend to "create" our own memory nad convince outselves that it is factual.