Our brains enable us to learn language. We develop it early on in life and use it effortlessly every day. It is only when the language system breaks down that we fully realize how complicated it is to speak and understand. In this article, we will explore what happens when brain damage leads to a language disorder called aphasia. About 15 million people worldwide and about 2 million in the U.S. alone are affected by aphasia. Sadly, many people still do not know what aphasia is. Here, we will explain different types of aphasia, tell you about the language difficulties people with this disorder encounter, and provide information about how language is processed in the brain.