Alzheimer’s is one of the most common neurodegenerative diseases in the world, affecting millions of people every year.

While memory loss and confusion are the most well-known symptoms, there’s a lesser-discussed symptom that often appears at night: sundown syndrome, also known as “sundowning”.

What is Sundown Syndrome?

Sundown syndrome is a condition that affects some people with Alzheimer’s, causing increased confusion, anxiety, and agitation in the late afternoon and evening hours. This phenomenon can be particularly challenging for both patients and caregivers, as it disrupts sleep and overall quality of life.

Causes of Sundowning

The exact cause of sundowning is still unknown, but it’s believed to be linked to:

Disruptions in the body’s internal clock: Alzheimer’s patients may struggle to distinguish between day and night, throwing off their sleep-wake cycle.

Fatigue: Tiredness built up throughout the day can intensify confusion and anxiety.

Lack of natural light: As daylight fades, symptoms can worsen.

Symptoms of Sundown Syndrome

Symptoms can vary from person to person, but often include: