What part of the brain is not fully developed in adolescence therefore making the adolocencent vulnerable to risk taking and other poor decisions?

The prefrontal cortex, which is responsible for decision-making, impulse control, and risk assessment, is not fully developed during adolescence. This immaturity contributes to adolescents being more prone to risk-taking behaviors and poor decision-making. In contrast, the limbic system, which is involved in emotions and reward processing, is more active during this period, further influencing their choices. As a result, the imbalance between these brain regions can lead to impulsive actions and a lack of foresight in adolescents.