DEAR DOCTOR K: My husband and I are in our early 80s. Sometimes in the evening he is agitated, confused, and just quite a handful to deal with. The doctor says he has "sundowning." What is it, and is there anything I can do?
DEAR READER: Some older people have trouble concentrating, grow agitated or even confused, and become especially fatigued at the end of the day. This phenomenon is known as "sundowning" because its effects tend to coincide with sunset -- usually occurring in the late afternoon into the evening, then settling down late at night.