Final answer:
Sundowning refers to the phenomenon where behavioral symptoms of Alzheimer's disease worsen in the evening, contributing to increased levels of confusion and agitation in patients.
Step-by-step explanation:
Sundowning is the term that refers to the behavioral symptoms of Alzheimer's disease worsening in the evening. Symptoms of this progressive neurodegenerative condition include disruptive memory loss, confusion about time or place, difficulty with planning and executing tasks, poor judgment, and personality changes. Sundowning can significantly impact the well-being of patients by exacerbating these symptoms as the day progresses, particularly during the late afternoon to evening hours, contributing to increased confusion and agitation.