For undergraduate-level courses in Chemistry, Biology, Sociology, and Criminal Justice, this text addresses the effects of high-use, high-abuse drugs in America in a timely and straightforward fashion. It reflects the most recent research on the most highly addictive drugs, including street, over-the-counter, and prescription drugs. It is designed to be easily accessible to the nonscience major, yet comprehensive enough for use by the practicing professional. *NEW-Over two dozen real-life case studies. *NEW-A full chapter on drugs in sports. *NEW-Over 190 Web sites-Lists relevant, reliable sites at the end of each chapter. *NEW-Womens health issues-Features major additions and updates, including drugs in pregnancy and designer estrogens. *Timely information on the latest street and designer drugs-Gives special attention to their composition, addictive potential, and withdrawal symptoms. Includes photos. *Extensive introductory chapters-Address definitions, concepts, theories, and laws that can be applied generally to many drug categories, including over-the-counter and prescription drugs. *Over 300 in-chapter and end-of-chapter study questions. *Includes valuable reference tools -