Presents questions from hundreds of high school students across the country with answers that shed light on the physical, emotional, and social issues affecting sleep and dreams. Gr. 8-11. Distilling information from dozens of recent clinical studies, Brynie pairs specific answers to brief questions on the nature and stages of sleep and its complex effects on the brain and body, sleep disorders, and the function of dreaming. Appended to each chapter is a separate discussion on the chapter's topic; accompanying the chapter "How and Why We Sleep," for example, is a section about teen sleeping habits. Other such sections discuss animal dreaming, a night in a sleep lab, and circadian rhythms. A generous multimedia resource list, a glossary, and extensive notes conclude. Although Brynie urges readers to get more sleep, be cautious when using chemical sleep aids, and consult a doctor for such seemingly innocuous symptoms as snoring; the density and utilitarian format of her presentation, like others in the 101 Questions About series, make it more suitable for research than for general reading. Byrnie closes with the thought that there are still more questions about sleep than answers--but her useful study provides much on a set of topics relevant to every reader. John Peters Copyright © American Library Association. All rights reserved