Making sense of adolescence -- A guided tour of their brains -- Why adolescents are impulsive -- Risky business : helping teens put on the brakes -- What we have here is a failure to communicate -- Stress and the teen brain -- Understanding male and female brains -- Love, sex, and the adolescent brain -- Monkey wrenches in the brain : alcohol, tobacco, and other drugs -- Iteens : media and technology -- Food, exercise, and the story behind tired teens -- When things go wrong in the brain : adolescent mental illness -- Friends, peers, and identity -- The importance of connection and guidance -- In conclusion.