The ailments and conditions that afflict people today can be confusing, disturbing, and painful -- emotionally as well as physically -- to impressionable young people. The Diseases and Disorders series offers young readers and researchers a means of understanding these ailments and their ramifications. Clear, careful explanations offer insight into what these conditions are, what causes them, how people live with them, and the latest information about treatment and prevention. All volumes in the series include primary and secondary source quotations, annotated bibliographies, and lists of organizations to contact for additional information.