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MSD Manual
Consumer Version
HEALTH TOPICS
HEALTHY LIVING
SYMPTOMS
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HEALTH TOPICS
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Quick Facts: Brain, Spinal Cord, and Nerve Disorders
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Dementia
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Dementia
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Alzheimer Disease
What is Alzheimer disease?
What causes Alzheimer disease?
What are the symptoms of Alzheimer disease?
How can doctors tell if someone has Alzheimer disease?
How do doctors treat Alzheimer disease?
Care for caregivers
How can I prevent Alzheimer disease?
Chronic Traumatic Encephalopathy (CTE)
What is chronic traumatic encephalopathy (CTE)?
What causes CTE?
What are the symptoms of CTE?
How can doctors tell if I have CTE?
How do doctors treat CTE?
Care for caregivers
Dementia
What is dementia?
What causes dementia?
What are the symptoms of dementia?
How can doctors tell if someone has dementia?
How do doctors treat dementia?
Care for caregivers