Gr 5-8-These two volumes explore the causes, symptoms, diagnosis, and treatment of two health conditions. Abramovitz addresses the different types of leukemia and how they are diagnosed, as well as the possible roles of electromagnetic fields, genetics, and chemicals in the development of the disease. New research techniques are described in detail, including stem cells, cytokines, replacement DNA, and Gleevec, a drug that targets a specific part of a gene. The seriousness of the disease is underscored by the black-and-white photos of weeping parents and of children receiving painful injections. Stewart addresses various types of sleep-related problems, such as insomnia, narcolepsy, night terrors, and apnea. Each disorder is fully explained in nontechnical terms. This volume also includes information about new research and medications, and the role of society in making people feel guilty for feeling tired or going to bed early. Most of the black-and-white photos in this title are merely decorative.-Christine A. Moesch, Buffalo & Erie County Public Library, NY Copyright 2003 Reed Business Information.