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What is dementia? You asked Google – here’s the answer

Look up dementia, and you will find umbrellas. It is usually called an umbrella term, because “dementia” covers all kinds of brain damage and disease: Alzheimer’s, dementia with Lewy bodies, frontotemporal dementia, vascular dementia. Most involve memory loss, personality change, the impaired ability to speak, connect, function. All dementia is thought to result from the impairment of brain cells, usually damaged by the formation of plaques and tangles, protein deposits that impede the normal functioning and communication of neurons. How the damage begins is still unknown, along with how to stop it.

Read more on the Guardian website.