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The Unknown Symptom of Alzheimer’s That Manifests at Night

Alzheimer’s disease is widely known for its impact on memory loss and cognitive decline. However, there are many lesser-known symptoms that can be just as telling — and some of these emerge specifically at night.

One such unknown symptom of Alzheimer’s that often manifests during nighttime is called “sundowning.” Understanding this phenomenon is crucial for caregivers and family members, as it can dramatically affect the quality of life for both the patient and their loved ones.

🌙 What Is Sundowning?

Sundowning refers to a pattern of increased confusion, agitation, anxiety, and restlessness that tends to occur in the late afternoon, evening, or night. Patients with Alzheimer’s may become more disoriented, irritable, and even exhibit behaviors such as pacing, wandering, or yelling — behaviors that are not as prominent during the day.

🧠 Why Does Sundowning Happen?

Though researchers don’t have all the answers, sundowning is believed to be linked to:

• Disruption of the body’s internal clock (circadian rhythm): Alzheimer’s can interfere with sleep-wake cycles.
• Fatigue from the day: Patients may become more tired and less able to process information.
• Reduced sensory input: As natural light fades, it becomes harder for the brain to make sense of the environment.
• Medication effects or other health conditions: Sometimes contributing to nighttime confusion.

🔍 Signs to Watch For at Night

If you care for someone with Alzheimer’s, be on the lookout for these signs in the evening or nighttime hours:

• Increased restlessness or pacing
• Heightened confusion or disorientation

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