The last decade has yielded an unprecedented amount of new science relating to the unique strengths and weaknesses of the adolescent and young adult brain. It is now crystal clear that when it comes to the brain, adolescents are not simply adults with fewer miles on them. In fact, the brain is the last organ in the body to mature, and is finally completed in most people in the mid to late twenties. Frances Jensen, a neurologist and neuroscientist, as well as a mother of two teenage sons, discusses a partial list of findings from her research relating to the teen brain. Through the author's research, it became clear that teenagers are highly data-driven and have a great deal of respect for facts. They won't necessarily follow a request, but it is important to show them "the data." Having real data and facts to back up one's discussions with teenagers about healthy development is essential as we help them navigate through to adulthood. As parents and educators, the more we know about the teen brain, the more we can help teens thrive in this crucial stage of development.