Cambridge 12 | Test 6 | Passage 3
The Benefits of Being Bilingual
Research indicates that bilingual experience
may help to keep the cognitive mechanisms sharp by recruiting alternate brain
networks to compensate for those that become damaged during aging. Older bilinguals
enjoy improved memory relative to monolingual people, which can lead to real-world
health benefits. In a study of over 200 patients with Alzheimer’s disease, bilingual
patients reported showing initial symptoms of the disease an average of five
years later than monolingual patients. In a follow-up study, researchers
compared the brains of bilingual and monolingual patients matched on the
severity of Alzheimer’s symptoms. Surprisingly, the bilinguals’ brains
had more physical signs of disease than their monolingual counterparts,
even though their outward behavior and abilities were the same. If the brain is
an engine, bilingualism may help it go farther on the same amount of
fuel.