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Abstract
Recently the question of whether or not bilingualism may protect against the development of Alzheimer’s disease (AD) has become a topic of great interest. Previous studies suggest that being bilingual slows the decline in executive control associated with the aging process. Spurred by these positive findings in normal subjects, investigators have tried to determine if being bilingual may be associated with delayed onset of AD. A number of studies collectively suggest that being bilingual may lead to a delay in the diagnosis of AD by as much as 5 years, even when taking into account confounders. Although a recent landmark study provides physical evidence confirming this advantage in AD patients, further work needs to be done to clarify its’ neuroanatomical basis.
Financial & competing interests disclosure
The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending or royalties.
No writing assistance was utilized in the production of this manuscript.