Drugs, Stress and Human Function is written for non-major, general education courses in human biology. Based on the premise that students will most readily and effectively learn about what interests and relates to them, the book explores biology from the perspective of health-related issues and experiences that are relevant to all.

Building on a nature versus nurture approach, the book presents an integrated view of all major organ systems and explains human biology using real and relevant topics, such as reproduction, stress, nutrition, aging, disease, and drugs.

In contrast to many other textbooks in the field, Drugs, Stress and Human Function is written in a clear, concise manner, free of the scientific jargon that is often inaccessible to students. The material emphasizes "how it works"—conveying important concepts in an understandable and meaningful way and using simple, straightforward illustrations to clarify information and enhance student learning.