Learn how ADD-related traits have served to further human evolution. Author Thom Hartmann spotlights how modern life contributes to ADD, including a toxic environment, nutritional deficiencies, our quick-fix consumer culture, and the effects of television and overpopulation. Hartmann also documents the difficulties gifted children encounter in our educational system, and the hardships visual learners encounter in an auditory environment. As he discusses brain chemistry and physiology, he examines the pros and cons of the controversial drug Ritalin.