Anna is concerned about her memory. It seems she's having a lot of 'senior moments' lately. She often misplaces her keys and has trouble remembering the names of people to whom she's been introduced. She can't help but worry it could be something more serious. In fact, she is nearly paralyzed by the fear that she may be developing Alzheimer's.
Alzheimer's is, above all, an insidious disease. Its symptoms typically begin so mildly and progress so slowly that it's easy to deny them until one day there may be a 'defining incident;' an incident so bizarre, so far out, so outlandish that not even the spouse, child or other loved one can ignore it.