Question

The most common cause of dementia in the elderly is:

A) Cerebrovascular disease.
B) Alzheimer's disease.
C) Multi-infarct dementia.
D) Parkinson's disease.

Answer 1

Alzheimer's disease is the most common cause of dementia in the elderly, characterized by abnormal clumps and tangled brain fibers. It leads to cognitive decline and memory loss.

Step-by-step explanation:

Alzheimer's disease is the most common cause of dementia in the elderly. It affects roughly one in every eight people age 65 or older. The disease is characterized by the presence of abnormal clumps called amyloid plaques, tangled brain fibers called neurofibrillary tangles, and loss of neurons in the hippocampus. Alzheimer's disease is a neurodegenerative disease that leads to cognitive decline and memory loss.