Bilingualism Protects Against Cognitive Decline Due to Dementia and Stroke

Evidence suggests that bilingualism delays dementia onset and protects against cognitive decline. However, confounding factors such as immigration and education make the relationship a complex one. Bilingualism in India is an integral part of daily life, and exploring its effects here will help overcome some of these confounding effects. Our results indicate that bilingualism delayed onset of both dementia and mild cognitive impairment, and demonstrated a better cognitive outcome in stroke, thereby suggesting a cognitive advantage for bilingualism across different cognitive disorders.