Alzheimer�s Disease

Alzheimer�s Disease - Alzheimer'sDisease According...

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Alzheimer’s Disease According to the National Alzheimer’s Association, an estimated 5.2 million people have Alzheimer’s in America; every 71 seconds someone develops the disease and by mid-century someone will develop Alzheimer’s every 33 seconds. This progressive and devastating disease is the most common cause of dementia, which is a loss or impairment of intellectual and social abilities that affect daily functioning. Alzheimer’s primarily affects people age 65 and over; its development is unrelenting and irreversible, inhibiting a person’s intellect, memory and the ability to reason, learn and communicate. The path of Alzheimer’s may run anywhere from two to twenty years after the first signs appear, although death often occurs in about eight to ten years from pneumonia, heart failure or other complications due to neurological breakdowns. (Petersen, Ronald M.D) Alzheimer’s disease is a degenerative illness, originating in the brain regions that are important for short-term memory, and gradually spreads to other areas, affecting the brain’s communication systems by destroying its nerve cells. Initial neuron loss occurs first in the hippocampus which is a key structure of the memory system. This explains
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This note was uploaded on 04/30/2008 for the course BI 202 taught by Professor Kalaustin during the Spring '08 term at Quinnipiac.

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Alzheimer�s Disease - Alzheimer'sDisease According...

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