Why are Some People Healthy and Others Not? The Determinants of the Health of Populations.

This is a fascinating collection of essays exploring "why some people are healthy and others not," from a variety of disciplines and theoretical perspectives. It represents the efforts of a group of researchers from diverse backgrounds who have met intermittently over the last five years as part of the Canadian Institute for Advanced Research. Their common focus was to understand the determinants of a population's health. The book's point of departure is that "factors in the social environment, external to the health care system, exert a major and potentially modifiable influence on the health of populations through biological channels that are just now beginning to be understood." (p. 23) Via this observation, the volume challenges the widespread belief that health care is the most important determinant of health and argues for a more comprehensive and coherent understanding of the determinants of health. This thesis is lucidly presented in the introductory chapter. Evans brings together findings from a number of studies that provoke fundamental questions about our understanding of health.