The brain continues to mature in different ways throughout your life. And whether a brain is mature, or finished with those dynamic states of development you see in adolescence, may not be the right questionespecially if we are considering society and public policy. While no specific age has been identified as the age at which the human brain is fully mature, the washington post relates that many scientists agree that the brain does not reach maturity until at least the mid-20s. Some studies suggest that the brain continues to develop into the early 30s. The results are consistent with other research suggesting that the human brain continues to grow and mature right up to the point. When is the brain fully mature? The brain continues to develop beyond adolescence. Brain maturity extends well beyond teen years under most laws, young people are recognized as adults at age 18. As we mature, distant areas of the brain begin linking up with each other, leading to larger and more widely distributed networks. Explore the prefrontal cortex 3d brain the most important brain area to become fully wired up in adulthood is the prefrontal cortex the front portion of the frontal lobe. It doesnt matter how smart teens are or how well they scored on the sat or act. Good judgment isnt something they can excel in, at least not yet. The rational part of a teens brain isnt fully developed and wont be until age 25 or so. This brain region controls cognitive analysis and abstract thought, as well as corrective behavior in social situations. Magnetic resonance imaging (mri) studies have made it possible for scientists to watch the rate at which the pfc matures, and have discovered the male brain doesnt fully develop until age 25.