Frequently Asked Questions: What are the Risk Factors for Alzheimer’s Disease?

Age is the primary risk factor for the development of Alzheimer’s disease (AD). Genetic factors may influence the development at a very early age. However, the etiology is unknown in the majority of patients and is likely due to a combination of both genetic and environmental factors. Only approximately 2% of Alzheimer’s cases are due to classical autosomal dominant genetic transmission. Three genes have been identified. These genes share a common biochemical pathway that leads to abnormal production of amyloid beta (a protein that accumulates in the brain of Alzheimer’s…

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