Being bilingual can help keep your brain in good condition

Steffanie Zazulak
A  silohuette of a side profile of a womans head inside her head space is a ocean sunset

Learning and understanding a new language is one of the most challenging things that your brain can do. But as well as the advantage of acquiring another language, it appears that the effort of giving your brain a good workout today by being bilingual could keep it in better condition in later life.

Research led by Dr. Daniela Perani, a professor of psychology at in Milan, found that people who speak two or more languages seem to weather the ravages of Alzheimer’s disease better compared to people who have only mastered one language. Alzheimer’s is a progressive mental deterioration that can begin in middle or old age due to generalized brain degeneration.

The study involved 85 people with Alzheimer’s – half of whom spoke both German and Italian and half who spoke only one language. The researchers found that bilingual patients had greater connectivity in key brain areas. This was especially in the part of the brain that governs “executive control” – a set of necessary behavioral cognitive processes that include problem-solving, working memory, reasoning and attentional control. The study also noted that the bilingual Alzheimer’s patients showed less severe symptoms of the disease.

The study concluded: “Our findings suggest that the effects of speaking two languages are more powerful than both age and education in providing a protection against cognitive decline.”

Bilingualism and the brain

Although Alzheimer’s disease is currently incurable, the study supports a popular theory that people who have higher levels of education function longer with little manifestation of the illness. Part of the reason why bilingual brains may be better at resisting Alzheimer’s could be due to a lifetime of switching between languages daily.?

Learning and speaking more than one language changes how the brain carries out tasks that require focus and concentration on a certain piece of information without being distracted. It can also increase the density of white matter (connections) in the brain, meaning that there are more connections between brain parts, thus making this part of the brain more resistant to degeneration.

This is supported by a study conducted by a team led by Professor Ana Inés Ansaldo at the , which suggests that bilingual people have more robust and more efficient brains compared to those who only speak one language. This is one of the reasons why a bilingual brain can be a buffer against aging and dementia.

They recruited elderly people, half of whom spoke only one language and the other half who had learned a second language between the ages of 11 and 18. All performed equally well on a task that involved focusing on an object's color while ignoring its position, but brain scans revealed a big difference in how they processed the task.

“While bilinguals were recruiting very specific brain areas and a small number of areas to perform the task, monolinguals were recruiting a much larger number of areas that were consuming much more resources. And the networks they were using were very, very complex,” says Professor Ansaldo. “That led us to think that the bilingual brain was more efficient in terms of the amount of resources that bilingual people require to do complex tasks as opposed to the monolingual brain.”

The study concludes that bilingualism shapes the brain in a different way or how people approach complex tasks. It could be because bilinguals must inhibit the language they are not using to focus on the one that they are using.

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    I can hear parents, ELT learners and teachers all over the world thinking to themselves: We know it helps if English students learn to read for pleasure at home, but how are we supposed to find the time? Who is buying these materials? What if a parent doesn’t speak English themselves?

    That’s the beauty of reading at home, also called extensive reading: it’s completely autonomous and parents can be as involved as much or little as they like. There’s more good news as it’s never been cheaper to assemble a selection of extensive readers for your children or students, meaning that cost is no longer so much of a barrier to reading at home.

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    "When [second language learners] read for pleasure, they can continue to improve in their second language without classes, without teachers, without study and even without people to converse with.’"?(Krashen 1993 p. 84)

    Philip Prowse’s excellent article, “What is the secret of extensive reading?”[2]?agrees with Krashen’s conclusion.

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    So, we know it works. As with so many education-related things, the question is how to implement them. Christine Nuttall talks about the virtuous circle of reading – once a learner begins to enjoy reading, they are more likely to read more and benefit more from it, so they learn to read more, and so on.

    The reverse is also true. The questions then follow: how do we motivate our Instakids to read at home in English, if they won’t read in their first language? How do we carve out time between travel, work, school and homework? Here are three ways you can form the habit of reading at home:

    1. Learners need access to extensive reading material at home to use it

    Krashen establishes this common-sense fact based on five studies from 1983 to 2003.[2]?It can be a reading app, an online library subscription or a pile of readers in the corner – whatever it is, it has to be the right level for the student and it has to be a topic they’re interested in, or they’ll never learn to read for pleasure.

    Negative reading habits can happen simply because there isn’t much available to the learner: Worthy and McCool studied 11 sixth-graders in 1998 who "hated to read", and found a direct correlation between those students and the lack of reading material at home.[3] Thankfully, we now have more options than we used to:

    For extensive reading online, the Extensive Reading Foundation offers good-quality, free materials, in audio and print, at its .?These text resources and audiobooks tend to be quite basic and the stories are largely classics. You can choose by level and genre, and there is also a publisher directory.

    • You can purchase full 色猫AV English Readers and other publishers’ Kindle editions on the Kindle store, iBookstore and Google Play, and read them on an e-reader, phone or tablet using the Kindle app. These are finely-graded, contemporary, relevant e-books with titles like , , , , , , and .
    • An e-book library subscription can be a cost-effective way to get access to a lot of e-books online through your browser. is a Japanese-run online library which offers hundreds of full-text graded readers, from reputable publishers, and charges about $19 per year.
    • For print readers, cost can be an issue. If you can't buy readers at your local bookshop from a publisher like 色猫AV, you can buy first- or second-hand readers cheaply from Amazon or the Book Depository, or you can ask your school to let you know when they’re upgrading their readers library, as you may be able to take some of the older books home.

    2.?Make the most of the commute or the school run

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    I listen to podcasts on my commute by train and, to this day, I know my times tables thanks to a tape my mother used to play in the car on the way to primary school.

    • Download a podcast or audiobook. Ideally, an English learner would both read and listen, but one or the other is better than nothing. Audible.com has plenty of English extensive readers in audiobook format, and a year’s membership is $10 per month, or you can buy individual audiobooks. There are classic extensive reading podcasts available on iTunes for $4.99 each.
    • Never underestimate your public library.??is an online service that finds your local library for you, wherever you are in the world. You can also search by title and see which libraries carry that particular book. Just think: you could create an instant, extensive reading library at your home for free that changes every month.

    3. Consider the power of rewards

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    This idea should be explored on a case-by-case basis – it depends on what you or your child responds to best. In my opinion, starting a reading habit is well worth a glass of wine, a chocolate treat, or an extra half-hour playing video games.

    References

    [1]?Krashen, Stephen D. (2004)?,?p57

    [2]? Prowse, Philip: “”?

    [3] Worthy, J. and McKool, S. (1996): “” in Ibid, p61