sundowning
A behavioral pattern in dementia patients characterized by increased confusion, agitation, and disorientation during evening hours.
Full Definition
Sundowning, also known as sundown syndrome, is a neuropsychiatric phenomenon commonly observed in individuals with dementia, particularly Alzheimer's disease, where behavioral symptoms worsen during late afternoon and evening hours. Symptoms may include increased confusion, agitation, restlessness, wandering, verbal or physical aggression, and disorientation. The exact mechanism is not fully understood but may involve disruptions in circadian rhythms, fatigue, reduced lighting, or changes in caregiver routines. Sundowning affects approximately 20% of people with dementia and can be one of the most challenging aspects of care for families and healthcare providers. Management strategies often include maintaining consistent daily routines, ensuring adequate lighting, and sometimes pharmacological interventions.
Usage
Usage note: Can be written as one word 'sundowning' or hyphenated 'sun-downing'; single word form is preferred.
In Context
- "The patient's sundowning episodes became more frequent as her Alzheimer's disease progressed." — Family meeting documentation
- "Nursing staff implemented a structured evening routine to minimize sundowning behaviors on the dementia unit." — Care plan update