The parts of the teen brain which develop first are those which control physical coordination, emotion and motivation. The part that powers the ability to think, plan, solve problems, make decisions and control emotions is one of the last to mature. It does not fully mature until the age of 25. Check out this short video clip on how the teen brain differs from the adult brain.
This may help to explain certain teenage behaviors that adults can find mystifying, such as poor decision-making, recklessness, and emotional outbursts.
A teen’s developing brain may be more prone to damage, so experimentation with drugs and alcohol can have lasting, harmful effects on your teen's health.