It's obvious that knowing more than one language can make certain things easier -- like traveling or watching movies without subtitles. But are there other advantages to having a bilingual (or multilingual) brain? Educator Mia Nacamulli details the three types of bilingual brains and shows how knowing more than one language keeps your brain healthy, complex and actively engaged. (Directed by TED-Ed, narrated by Pen-Pen Chen)

Mia Nacamulli: The benefits of a bilingual brain

The benefits of a bilingual brain

Bilingual brains exhibit higher grey matter density and more active regions when using a second language, boosting mental health.

Learning a language in childhood might offer a more holistic grasp of its social and emotional contexts, thanks to brain plasticity.

Multilingualism can delay Alzheimer's onset by up to five years, showcasing the brain's remarkable response to linguistic exercise.