This book presents the basic principles of human disease, organized by human organ system. It provides practical information for both health career and non-professional readers-unlike other books, which are generally too high level or specialized for this purpose. New in this edition are sections on Pharmacology and aging added to each chapter, new photos, an expanded end-of-chapter review complete with case studies, " Fact or Fiction" sections throughout, new sections on Mental Illness and Psychological Disorder and more. Existing content has been updated throughout. It also offers a FREE book-specific Website that connects readers quickly to reliable resources on the Internet and comes with a FREE CD-ROM. Full-color illustrations and photographs are throughout. An ideal reference for health professionals, readers preparing for a health course, biology teachers or for anyone interested in learning more about human diseases.