"It's a very come and go disease," writes Cary Henderson, a man with Alzheimer's Disease. "When I make a blunder, I tend to get defensive about it. I have a sense of shame for not knowing what I should have known. And, for not being able to think things and see things that I saw several years ago, when I was a 'normal' person. But everybody, by this time, knows that I'm not a normal person. And I'm quite aware of that."