The human brain's prefrontal cortex is the slowest developing and latest maturing organ in the body.
Other organs like the heart, lungs, intestines, kidneys, and anus already start developing in the mother's womb, just not completely.
However, the prefrontal cortex doesn't start growing until after birth, reaching maturity around the age of 20.
This organ determines a person's emotional control and abstract thinking capabilities.
Therefore, during adolescence, when the prefrontal cortex is not fully developed, emotions can easily get out of control.
At the same time, their thinking tends to be more concrete rather than abstract.
Not until it is fully developed do an individual's emotions and thoughts gradually become mature and more complete.
At this point, when they view or think about issues, they'll gradually have moments of clarity, and reflect on their younger selves with thoughts like "How was I so dumb back then, why did I do that, really embarrassing."
