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Dementia

14 October 2011

Bilingualism delays onset of Alzheimer's

Researchers have found that people who speak more than one language have twice as much brain damage as unilingual people before they exhibit symptoms of Alzheimer's disease.

Researchers at St. Michael's Hospital have found that people who speak more than one language have twice as much brain damage as unilingual people before they exhibit symptoms of Alzheimer's disease. It's the first physical evidence that bilingualism delays the onset of the disease.

Despite the fact that both groups performed equivalently on all measures of cognitive performance, the scans of the bilingual patients showed twice as much atrophy in areas of the brain known to be affected by Alzheimer's.

 

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