What Is Sundowning in Dementia?
Sundowning describes increased confusion and behavioral changes occurring in late afternoon and evening. Understanding sundowning helps families manage this challenging aspect of dementia care.
What Sundowning Is
Sundowning refers to a pattern where dementia symptoms worsen as daylight fades. Confusion, agitation, anxiety, and behavioral disturbances increase in late afternoon and evening hours.
The name comes from the association with sunset. Symptoms typically begin in late afternoon and may continue into the night. The pattern is predictable, recurring most days.
Sundowning affects about 20 percent of people with Alzheimer’s disease and other dementias. It is more common in middle to later stages of dementia.
Symptoms of Sundowning
Increased confusion occurs as evening approaches. The person may not recognize familiar surroundings or people. Disorientation worsens beyond typical daytime levels.
Agitation and restlessness are common. Pacing, wandering, and inability to settle increase. The person may seem driven to move or do something.
Anxiety and fear may emerge. The person may express worry, appear frightened, or want to go home even when they are home.
Behavioral changes include increased resistance to care, aggression, yelling, and demanding behaviors. Personality seems to change as evening comes.
Sleep disturbances often accompany sundowning. The person may have difficulty falling asleep, wake frequently, or reverse day-night patterns.
Causes of Sundowning
The exact causes are not fully understood. Several factors likely contribute to this phenomenon.
Circadian rhythm disruption affects dementia patients. The internal clock regulating sleep-wake cycles is disturbed. Fading light may trigger confusion in a damaged brain.
Fatigue accumulates during the day. Mental and physical tiredness worsen cognitive function. Less energy remains to cope with dementia-related challenges.
Reduced lighting creates visual challenges. Lower light levels make it harder to see clearly, increasing confusion and misperception.
Caregiver fatigue and stress may unconsciously affect interactions. Caregivers are also tired by evening, potentially affecting the person with dementia.
Management Strategies
Maintain regular routines. Consistent daily schedules provide structure and predictability. Routines reduce confusion and anxiety.
Increase lighting in late afternoon and evening. Bright light may reduce symptoms. Light therapy may help some individuals.
Limit caffeine and sugar, especially later in the day. Stimulants can worsen agitation and sleep problems.
Plan activities for morning when function is best. Save stimulating activities for earlier hours. Keep evenings calm and quiet.
Reduce evening stimulation. Turn off television news, limit visitors, and create calm environments as evening approaches.
Address unmet needs. Pain, hunger, need for toileting, or boredom may contribute to behaviors. Meeting needs reduces distress.
Getting Sundowning Support
All Seniors Foundation supports families managing dementia behaviors. Understanding and managing sundowning improves quality of life for everyone. Contact us for dementia care guidance and support.
