Have you ever wondered why some people can learn a new language easily, but others struggle?

It could be because they have a large Heschl's Gyrus.

A Heschl's Gyrus is a brain structure about the size of a finger, located on the brain's left side, and also on the right. Scientists think that the bigger your left Heschl's Gyrus, the greater your chances you will take to learning new languages.

The structure is usually associated with the basics of sound processing, like pitch and volume, but not directly connected to speech.

For this reason, if you have a smaller Heschl's Gyrus, you are still able to learn new languages, but perhaps not as easily, or in a different way, than others.