Chapter 1
The neural construction zone
Chapter 2
Tuning your ears to the world
Chapter 3
The science of micro-habits
Chapter 4
The bilingual superpower
Ch 4 · The bilingual superpower
duolingo Because both languages stay active simultaneously, the prefrontal cortex constantly suppresses one, improving attention control, working memory, and distraction resistance.
Quiz
What happens inside the brain of a bilingual person when they are speaking only one of their languages?
Quiz
Which brain region, often called the brain's executive control center, is heavily strengthened by managing two languages?
duolingo Bilingualism builds a cognitive reserve protecting the brain regardless of your education level.
Quiz
What is the scientific term for the brain's resilience and ability to function normally despite physical aging or damage?
Quiz
According to the landmark 2013 study by Dr. Suvarna Alladi, bilingualism delays dementia symptoms by how many years?
Fun Fact
Cognitive reserve: Managing two languages builds extra connections in your brain's white matter, creating backup pathways for your thoughts.
Quiz
Which deep brain structure works with the prefrontal cortex to coordinate the rapid switching between different language rules?
Quiz
What is the linguistic term for alternating between two or more languages within a single conversation?
Glossary
code-switching (noun)
The practice of alternating between two or more languages or dialects within a single conversation. Research from the Max Planck Institute found that code-switching actually demonstrates superior cognitive control.
The practice of alternating between two or more languages or dialects within a single conversation. Research from the Max Planck Institute found that code-switching actually demonstrates superior cognitive control.
duolingo Language and Perspective Taking
When you switch your words you train your mind to see from another side
Quiz
What is the psychological term for the ability to attribute mental states to oneself and others, understanding that others have different perspectives?
Quiz
Why do bilingual children often perform better on social perspective-taking tasks than monolingual children?