Designed for the undergraduate, non-science major, the thoroughly updated eighth edition of Human Biology, continues to present the latest information on the structure, function, health, and disease of the human body, while maintaining the central organizational theme of homeostasis. This acclaimed text explores the world from the cellular level, followed by a look at tissues and organs, and then moves on to a discussion of humans as organisms within a complex evolutionary and ecological environment. Dr. Chiras discusses the scientific process in a thought-provoking way that challenges students to become deeper, more critical thinkers. The focus on health and homeostasis allows students to learn key concepts while also assessing their own health needs and learning how to implement a healthy lifestyle.