Alzheimer's disease
Definition
Alzheimer's disease, or AD, is a progressive, incurable disease of the brain caused by the degeneration and eventual death of neurons (nerve cells) in several areas of the brain.
Description
Patients with AD first lose such mental functions as short-term memory and the ability to learn new things. In the later stages of AD they gradually lose control over their sense of orientation, their emotions, and other aspects of behavior. End-stage AD is characterized by loss of control of body functions, an increased likelihood of seizures, loss of the ability to eat or swallow, and eventual death from infection or malnutrition. Alzheimer's disease...
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