Rates of diagnosis of attention-deficit/hyperactivity disorder (ADHD) are skyrocketing, throughout America and the rest of the world. U.S. rates of youth diagnosis have increased 40% from just a decade ago. Adults with ADHD are now the fastest-growing segment of the population receiving diagnosis and medication. The disorder is painful and sometimes disabling for individuals and tremendously costly for society; yet, widespread misinformation, skepticism, and unanswered questions have jeopardized effective diagnosis and treatment. Researched and written by Stephen Hinshaw, an international expe