It’s a known fact that a change of lifestyle routine which includes regular exercise, education as well as a high level of intelligence can delay Alzheimer’s disease. However, research has also shown that bilingualism is also another factor that can protect one from Alzheimer’s disease too.
Speaking of the study’s findings, Suvarna Alladi, lead author from the Nizam’s Institute of Medical Sciences, said, “Our study is the first to report an advantage of speaking two languages in people who are unable to read, suggesting that a person’s level of education is not a sufficient explanation for this difference. Speaking more than one language is thought to lead to better development of the areas of the brain that handle executive functions and attention tasks, which may help protect from the onset of dementia.”
Published in an online version of the journal Neurology, this study, in using 648 subjects as an average age of 66 years, is the largest to-date. What was found that even if the person was illiterate but could speak two languages, this delayed Alzheimer’s disease – both fronto-temporal and vascular dementia.
That said, the study did not find any benefits to multilingualism or speaking more than two languages.
While this study is, no doubt, the largest, it isn’t the first to compile similar findings. Prior to this study, scientists have found that speaking two languages will delay dementia by four years. This is because such skills expand the brain’s cognitive or behavioral brain reserve thus, slowing down cognitive decline as a result.