Things They Don't Want You to KnowA field guide for parents about the secret lives of 21st century teenagers from relationships to self harm, from drugs to sexting and how you can help them and yourself through these turbulent years. "When I turned into a teenager, I watched my parents panic with questions they were unprepared for: is the computer killing his brain? is he watching porn? are those cuts on his arms? what the hell do we do now? The child rearing tactics they'd read about