What is the second most common type of dementia?

What is the second most common type of dementia?

• A. Alzheimer's disease
• B. Vascular dementia
• C. Lewy body dementia
• D. Frontotemporal dementia

Answer: (B)

After Alzheimer’s disease, vascular dementia is the next most common type of dementia. This form arises from cerebrovascular disease that damages brain tissue through strokes or chronic small-vessel injury. Risk factors such as hypertension, diabetes, smoking, and high cholesterol contribute to its development, and the decline often occurs in a stepwise fashion with possible focal neurologic signs or deficits between declines. This pattern contrasts with the typical early, prominent memory loss of Alzheimer’s disease, helping explain why vascular dementia is considered second most common. Lewy body dementia and frontotemporal dementia are important but less prevalent overall; Lewy body dementia often has visual hallucinations and parkinsonian features, while frontotemporal dementia usually presents with behavior or language changes and tends to occur earlier in life.

After Alzheimer’s disease, vascular dementia is the next most common type of dementia. This form arises from cerebrovascular disease that damages brain tissue through strokes or chronic small-vessel injury. Risk factors such as hypertension, diabetes, smoking, and high cholesterol contribute to its development, and the decline often occurs in a stepwise fashion with possible focal neurologic signs or deficits between declines. This pattern contrasts with the typical early, prominent memory loss of Alzheimer’s disease, helping explain why vascular dementia is considered second most common. Lewy body dementia and frontotemporal dementia are important but less prevalent overall; Lewy body dementia often has visual hallucinations and parkinsonian features, while frontotemporal dementia usually presents with behavior or language changes and tends to occur earlier in life.