The brain learns a foreign language best between one and three years old. At
this time the grammar is processed by the left hand hemisphere only – just
like when a baby first learns its own native language. Between 4 and 6 the
grammar is processed by both hemispheres. This shows that when exposed to
the language at a very young age a very effective processing strategy is
used but at older ages less efficient strategies are used. Therefore the
earlier you learn the language the better. Studies also show that accents of languages
are more intuitively learned before the age of 12.
Click here to explore Adolescence.