compromise of memory and at least one other cognitive domains, the most common is aphasia (typically, from finding difficulties), inability to perform motor tasks, such as cutting a loaf of bread, although motor functions intact, inability to recognize objects, and executive function impairment (less abstract, mental flexibility, planning and poor judgment) . The diagnosis of dementia requires a significant decline in function severe enough to affect work or social life. Memory loss that ratio has doubled every 5 years in the older population , reaching 30-50% at the age of 85, women suffer disproportionately. Alzheimer's disease (AD) accounts for about two-thirds of dementia cases in the United States, vascular dementia (either alone or in combination with AD) and dementia with Lewy bodies account for much of the rest . Some risk factors for AD are older, family history, lower education levels, and women.
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