My father and grandmother, who both lived past 90, had Alzheimer's, which is a concern for me, but I'm encouraged by the fact that I do not carry the apoe4 gene. I do need to eat better and get more exercise.
I'm surprised that this comment is being downvoted. I did not mean it in any way as a negative comment on the death of Sir Patrick, who's work I greatly admire. I apologize for any offence I've cause.