Speaking 4 Languages Linked to Brains 13 Years Younger, FENS 2026 Research Finds

3 articles · Updated · ETV Bharat · Jul 6

144 people in Spain’s Basque region showed a clear gradient: speaking two languages was linked to brains about six years younger, three languages seven years younger, and four languages 13 years younger.
728 participants were used to build an AI-based “brain ageing clock” from magnetoencephalography data, letting researchers compare a person’s chronological age with their brain’s apparent age.
Earlier second-language learning and higher fluency were also tied to slower brain ageing, suggesting the depth and duration of multilingual experience matter, not just whether someone is bilingual.
Researchers adjusted for age, sex and education but said lifestyle and social engagement could still affect the results; they next plan to test the approach in Alzheimer’s and other neurodegenerative conditions.

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If speaking four languages makes a brain 13 years younger, what other activities could offer similar cognitive renewal?

Can learning a new language at age 60 really turn back your brain's clock, or is the magic lost after childhood?

Speaking Multiple Languages Slows Brain Aging: Large-Scale European Study Reveals Protective Effects Against Cognitive Decline

Overview

Recent groundbreaking research has shown that speaking multiple languages can help protect the brain from aging and cognitive decline. A major study published in Nature Aging in 2025 involved over 86,000 participants from 27 European countries. This large-scale investigation used innovative methods to measure how multilingualism affects brain health and found that people who speak more than one language tend to age more slowly in terms of brain function. These findings build on earlier research, confirming that multilingualism can improve memory and attention, and highlight the importance of language learning as part of global strategies for healthy brain aging.

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