Expert review of neurotherapeutics
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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. ⋯ 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.