DEAR DOCTOR K: I do my best to care for my mother, who has Alzheimer’s disease. But I often feel guilty and frustrated. Can you help me change my outlook — for my sake and my mother’s?

DEAR READER: Fortunately, I never had to face the challenge that you face, as my parents both died while in full possession of their faculties. But many of my patients and friends are experiencing what you are going through. And like you, they often feel guilty and judge themselves harshly.