How come the brain of a bilingual person? According to Judith Kroll, a psychologist that studies bilingualism, a bilingual person sometimes forgot words in your native language because the two languages sometimes converge and, also they compete. Our brain needs an actively choose a second language every time then I say a word or phase. Even after years and years speaking a second language every day it's tiring and be a relief speaking our native language. In fact, Kroll says that our native language may take a hit during second language learning, but this is crucial for the process to learning. The learner who are able to take a hit on own native language may be better able to learn the second language. Every time that you choose a word on your native language over in a second language or vice versa, your brain gets a little stranger. Any bilingual person doesn't bother making a choice, and they often mix the language together saying things like "I wanted to enjoy the holiday, e viajar um pouco". This is a normal and typical behavior part of a bilingual experience. As a result, bilingual people still choose between languages, but they not making the same choose every time. Because they don't have two monolingual minds operating separately in on head, they have on the bilingual brain.