Dementia and language bilingualism helps ward off alzheimer's disease

There has been extensive discussion with regard to whether bilingualism helps ward off dementia. However, there is still debate over bilingualism's effects. Researchers have determined that bilinguals have a greater advantage in delaying dementia than monolinguals. Researchers have used cognitive reserve to explain their views. However, recently, some researchers have arrived at a different conclusion, stating that bilinguals have no advantage compared with monolinguals in delaying dementia. In this review, we summarize a review of studies on bilingualism and dementia, supporting the viewpoint that bilinguals have an advantage in delaying dementia compared with monolinguals.