研究表明，掌握多种语言能够为大脑提供类似肌肉锻炼的刺激，帮助保持认知敏锐。1多项长期研究验证了多语言与延迟痴呆诊断之间的关联，这一发现已在超过50年的研究中得到确认。1加拿大约克大学的Ellen Bialystok教授指出："学习语言是艰难的，这正是它的价值所在。"1
研究数据显示出语言数量与脑部年龄之间的显著关联。1掌握两到三种语言的人，其大脑看起来比单语使用者年轻6岁；而掌握四种语言者的大脑则显得年轻13岁。1西班牙巴斯克认知脑与语言中心研究员Lucia Amoruso基于超过86,000人的数据进行的研究发现，单语使用者面临的加速衰老风险约为双语使用者的两倍。1该研究涵盖27个欧洲国家，已于去年发表在《Nature Ageing》期刊。1
即使患有阿尔茨海默病的病理变化，双语人士的大脑仍能在较长时间内保持功能——研究显示这一保护期可达4至5年。1
Learning new languages provides intensive cognitive training that helps maintain mental sharpness throughout aging, according to recent research.1 Studies spanning over 50 years have demonstrated that multilingualism may delay dementia diagnosis and slow brain aging.1 Professor Ellen Bialystok explains that "learning a language is hard, and that is precisely why it is valuable," emphasizing how the difficulty of language acquisition contributes to cognitive benefits.1
Research findings show substantial differences in brain health between multilingual and monolingual individuals.1 People who speak two or three languages have brains that appear six years younger than monolingual speakers, while those fluent in four languages show brain aging reduced by 13 years.1 Conversely, monolingual speakers face approximately twice the risk of accelerated brain aging compared to bilingual individuals.1 Even when multilingual people develop Alzheimer's pathological changes, their brains maintain functional capacity for four to five additional years.1
A comprehensive study by Lucia Amoruso analyzing data from over 86,000 individuals across 27 European countries, published in Nature Ageing last year, underscores the widespread cognitive benefits of multilingualism.1
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