We can detect accents in our native language very quickly. Imitating an accent helps you better understand what's being said in that accent. It is tough to remove an accent completely but can be trained. Certain accents are said to be more attractive.

Our brain can crack codes, as in jumbled up letters or garbled nonsense or sentences consisting of digits and letters.

Bilingual education is controversial in the world today but so is its value. While bilinguals with Alzheimer's retained brain function longer than monolinguals, the cost of bilingualism is having a smaller vocabulary in each language. The thing about the bilingual brain is that knowing more than one language and knowing when to use each rewires your brain completely, giving those people certain advantages and maybe some disadvantages.

Since we think in words, the more words we know, the more we can think. Some languages have many words for describing the same thing, making communication much more specific. Yet this study looks at a language that doesn't have words - for numbers. The small population that speaks Piraha showed that they could only think as accurately as their vague "amount" words.