Recent developments have brought into a new focus the importance of knowledge and skills in biology for the study of public health. Understanding how and why manifestations of a disease occur and incorporating this knowledge into public health decision-making is the very essence of public health practice. As the only text of its kind, Essentials of Public Health Biology explores pathophysiology within the context of the disciplines and profession of public health. Ideal as a concise review for the student with a science background, this text applies the scientific clinical foundation to the practice of public health through case studies, exercises, points for discussion, and test questions. Table of Contents Contents PART 1: Concepts of Health and Disease in Public Health Introduction: Constance Battle 1. Essay: The Origins And Achievements Of Modern Science Richard Schlagel 2. Essay: Biochemistry: A Foundation For Health Sciences Mark S. Elliott 3. Genetics And Public Health Joseph D. McInerney 4. The Public Health Triad Brian Szekely 5. Epidemiological And Public Health Perspectives On Aging In America Daniel Foley 6. Drug-Induced Diseases And Safe Medication Use Michelle Kalis, Judy Cheng 7. Disease Versus Disease: How Some Diseases Ameliorate Others E. Richard Stiehm 8. Behavioral Determinants Of Health Fran Fiocchi PART II: Using Public Health To Address Behavioral Change Introduction: Constance Battle 9. Understanding Nutriti