Sleep changes are a common symptom of Alzheimer's disease. Many people with this condition experience sundowning, a phenomenon where they get increasingly confused, anxious, and aggressive at night. To promote better sleep, people with Alzheimer's should avoid stimulants, including coffee and nicotine, and limit napping during the day. Getting more physical activity during the day can also help. Cholinesterase inhibitors may contribute to insomnia, but changing the time of day the person takes the drug can help.

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