Children who learn two languages as they grow up find it easier to learn a third in later life, a study found. They learn faster than their monolingual counterparts, confirming the theory bilinguals are better at picking up another language, researchers say. Researchers found boosted brain activity in brain scans of bilingual people which showed they learned an extra language using brain processes usually reserved for their native tongue. Children who learn two languages as they grow up find it easier to learn a third in later life, a study found. Learning to speak a second language at any point could help keep your brain sharp as you age, a 2015 study found.