Just reading the latest Terry Pratchett newsletter and this made me smile wryly. On the subject of his early-onset Alzheimer's:
"People continue to ask them after my health and I thank them, but the fact is that when I tell people what the symptoms might be they all interrupt by telling me; "that happens to me, I’ve lost count of how many times I’ve gone upstairs and forgotten what I am there for, I continuously lose my keys." In short, I’m not sure how many of the things I notice are to do with the disease (which I certainly have because I have seen the scans) or simply because, to the best of my knowledge, I have never experienced being 61 before."
God bless, Sir Terence.