This book presents recent findings on the role of oxidative stress in chronic diseases. Understanding the mechanisms behind it enables readers to comprehend the rationale which underlies intervention in such conditions. The book places special emphasis on genetic polymorphism-an important issue related to this field of study. It covers the role of oxidative stress in transmissible disorders as well as non-transmissible chronic conditions with chapters on metabolic diseases, autoimmune and neurodegenerative diseases, and cancer and cachexia. Each chapter covers a different disorder and the efficacy of interventional procedures.