Over 4 billion people worldwide are bilingual or multilingual, meaning they speak more than one language.
Which is so impressive to me.
Sadly, I only speak one language, but I am working hard to learn Spanish with Duolingo, who is today's sponsor.
More on them later.
But what if I told you being bilingual or even becoming bilingual at an older age isn't just impressive, but a brain-changing superpower that could not only increase your mental abilities, but also slow the aging of your brain and potentially even prevent disease.
Let's start with a simple example.
What do you see?
Chances are you see a rabbit or a duck.
A lot of people are actually able to see both, but not at the same time.
Your brain actually has to switch back and forth between the two.
