This book investigates why humans are susceptible to disease in an evolutionary context. Randolph M. Nesse, a physician and evolutionary biologist, explores the fundamental reasons behind our vulnerability to illness. The book examines how evolutionary pressures, such as natural selection and trade-offs, have shaped our bodies in ways that can lead to disease. Nesse argues that understanding these evolutionary roots is crucial for developing more effective strategies for health and medicine.

The book is regarded as a foundational text in evolutionary medicine, offering a compelling framework for understanding disease. It is praised for its accessible explanation of complex evolutionary concepts and their direct relevance to human health. The work is considered essential reading for anyone interested in the biological basis of illness and the future of medical science. Its insights continue to inform research and clinical practice.