Asthma is a long-lasting, incurable disease that affects over 300 million people, and that number continues to grow. As readers explore the science and current research behind asthma, they learn about the dangers of this disease and how everyday things in our world can greatly affect asthmatics. Readers also discover the tremendous economic costs of this disease, as well as identify the symptoms of asthma attacks. Sidebars throughout the book provide additional insight, and full-color graphs, charts, and photographs provide readers with a better understanding of the important information being presented to them.