"An eye-opening report from an award-winning author and former New York Times reporter reveals the link between teenage marijuana use and mental illness, and a hidden epidemic of violence caused by the drug--facts the media have ignored as the United States rushes to legalize cannabis"-- Provided by publisher.

Introduction: Everything you're about to read is true -- Part one: Then and now. Madness on two continents ; Schizophrenia, (mis)understood ; Getting high in the 1970s ; The first real proof ; Medical marijuana wins -- Part two: Proof. A round-the-world search for evidence ; An unlikely theory gains traction ; Study after study after study ; Stories from the front lines ; An epidemic arrives -- Part three: The red tide. Laboratory studies, real-world facts ; Axes and knives ; One bad trip ; Myths, spreading -- Epilogue: What now?.