Dementia: Bilingualism may help brain conserve resources and
Researchers at the Université de Montréal in Canada came to this conclusion after studying brain connections in older people with the help of brain imaging.

Senior author Prof. Ana Inés Ansaldo, whose laboratory investigates the effects of language processing and aging brain plasticity, says:

"After years of daily practice managing interference between two languages, bilinguals become experts at selecting relevant information and ignoring information that can distract from a task."

When we are engaged in a task, our brains recruit different networks, depending on the nature of the task.


http://www.medicalnewstoday.com/articles/315260.php
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