Cognitive impairment whose maximum expression is dementia. They constitute syndromes that affect functional independence due to intellectual, cognitive (mainly gradual onset), motor and emotional deterioration. Among the most frequent causes associated with pathophysiological processes related to aging in older adults are: Alzheimer's disease (AD), mixed AD, cerebrovascular disease, diabetic encephalopathy, metabolic syndrome. And less frequently: pathology with Lewy bodies (in Lewy body dementia, Parkinson's disease dementia, frontotemporal degeneration (frontotemporal dementias), and...