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What is the cause of dementia

What causes dementia spans various areas.

What Causes Dementia

Dementia can be caused by a variety of diseases and conditions, many of which impact the brain either directly through cellular changes or indirectly through effects on the body’s vascular or metabolic systems. 

What Causes Dementia: Some of the most common causes include:

1. Neurodegenerative Disorders: 

These are diseases in which brain cells die off over time.

 – Alzheimer’s Disease: Characterized by the buildup of amyloid plaques and tau tangles in the brain.

 – Lewy Body Dementia: Involves abnormal deposits of a protein called alpha-synuclein in the brain.

 – Frontotemporal Dementia: Associated with atrophy in the frontal and/or temporal lobes of the brain.

2. Vascular Dementia: 

Caused by conditions that block or reduce blood flow to the brain, leading to neuron damage and brain tissue death. 

This can be the result of strokes or small vessel disease.

3. Infectious Diseases:

 Certain infections that affect the brain, such as HIV/AIDS, can lead to symptoms of dementia. 

Prion diseases, such as Creutzfeldt-Jakob Disease, are rare but result in rapid brain damage.

4. Traumatic Brain Injury (TBI):

 Repeated injuries to the brain, including concussions, can increase the risk of a type of dementia known as chronic traumatic encephalopathy (CTE).

5. Intracranial Conditions:

 Normal Pressure Hydrocephalus (a buildup of cerebrospinal fluid in the brain ventricles) can cause symptoms of dementia, although potentially reversible if diagnosed and treated early.

6. Immunologic Disorders:

 Conditions where the immune system mistakenly attacks the nervous system, as seen in multiple sclerosis, may sometimes be associated with cognitive decline.

7. Metabolic and Endocrine Abnormalities:

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