Preface to the second edition Making sense of adolescence A guided tour of their brain 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