Global Perspectives in Health is a component of Encyclopedia of Biological, Physiological and Health Sciences in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. The Theme on Global Perspectives in Health provides the essential aspects and with a myriad of issues of great relevance to our world such as: Global Perspectives in Health; Determinants of Health and Their Interactions; Epidemiology: Health and Disease in Populations; Health Care Systems; Ethical Issues in Health; New Problems in Global Health. These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.