Health care is a basic human right. However, as our planet grows smaller, the number of people without even minimal care continues to rise. This volume brings into sharp focus the ethics and multiple questions involved in keeping the world in optimal health, and identifies the massive tasks that lie ahead. Twenty-one prestigious contributors examine the bioethical, sociopolitical, and scientific aspects of health, epidemics, aging populations, the double burden of disease, food safety, and other major health concerns of well-being at the international level.