Dementia is the progressive decline in cognitive function due to damage or disease in the brain beyond what might be expected from normal aging. Although dementia is far more common in the geriatric population, it may occur in any stage of adulthood.
In dementia, affected areas in cognition may be memory, attention, language, and problem solving.
The prevalence of dementia is rising as the global life expectancy is rising. Particularly in Western countries, there is an increasing concern about the economic impact that dementia will have in future, older populaces.
There is no cure to this illness, although scientists are progressing in making a type of medication that will slow down the process. Cholinesterase inhibitors are often used early in the disease course
Tacrine (Cognex), donepezil (Aricept), galantamine (Reminyl), and rivastigmine (Exelon) are approved by the United States Food and Drug Administration (FDA) for treatment of dementia induced by Alzheimer disease. They may be useful for other similar diseases causing dementia such as Parkinsons or vascular dementia.
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