The Bilingual Brain

For much of the twentieth century, parents were warned that raising a child with two languages might cause confusion and delay. Today, a large body of research paints a very different picture.

Studies suggest that bilingual people constantly switch between languages, and this mental exercise may strengthen the brain's ability to focus, ignore distractions and change tasks. Some research has even linked lifelong bilingualism to a later onset of memory problems in old age.

Nevertheless, scientists urge caution. Not every study has found these advantages, and the benefits may depend on how often people actually use both languages. What is clear is that learning a second language is never wasted: beyond any effect on the brain, it opens doors to new people, ideas and opportunities.