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It is estimated that 3.4 million individuals in the United States suffer from some form of dementia, and the numbers are rising quickly as people live longer. Dementia, as a broad term, is a condition of a sudden loss of cognitive ability in a previously unimpaired person, beyond what might be expected from normal aging.
Loss of function in the areas of language, memory, attention, and problem solving may all be present in various stages of disability. In most cases of dementia, it is irreversible. Specific causes are numerous, from...