Alzheimer's Disease Research
Risk Factors
- Age: The risk of developing Alzheimer’s increases with age. One
out of every 10 persons 65 years and older is a victim of Alzheimer's disease,
although early-onset victims may be in their 40s and 50s. Approximately
20 percent of Americans between the ages of 75 and 84, and almost half of
those 85 years and older suffer from Alzheimer's disease.
- Genetics: Early-onset Alzheimer's has been clearly shown to be
genetic in origin. While a mutation on chromosome 19 has been linked with
late-onset Alzheimer's (the most common form), not everyone with the mutation
develops the disease. The relationship between genetics and late-onset Alzheimer's
is not fully known.
- Other: Some studies have implicated prior traumatic head injury,
lower education level, and female gender as possible risk factors. However,
at the present time, no definitive causes have been identified.
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