I have just read the summary of the book. I would not for one moment wish to denigrate her experience but one thing did leap out at me. She has put an appendix of "40 things that I need" which is supposed to be guidance for the treatment of people who have had a stroke. She says "ask me multiple choice questions" My experience of folk who have had a stroke that affects speech and comprehension is that they find multiple choice hard to deal with and are better served, at least at first by a string of yes/no questions or choices between two things..so not eg "would you like tea, coffee, hot chocolate or juice?" but "would you like a drink? would you like a hot or cold drink? then tea or coffee?
The damage would have to be much less, or the recovery substantial before they could deal with multiple choice even with something as simple as a drink