Health and health-care systems in southeast Asia: diversity and transitions.

Southeast Asia is a region of enormous social, economic, and political diversity, both across and within countries, shaped by its history, geography, and position as a major crossroad of trade and the movement of goods and services. These factors have not only contributed to the disparate health status of the region's diverse populations, but also to the diverse nature of its health systems, which are at varying stages of evolution. Rapid but inequitable socioeconomic development, coupled with differing rates of demographic and epidemiological transitions, have accentuated health disparities and posed great public health challenges for national health systems, particularly the control of emerging infectious diseases and the rise of non-communicable diseases within ageing populations.

Introduction: Aging in Asia--perennial concerns on support and caring for the old.

This introductory article provides background to an understanding of "Aging in Asia," focusing on the demographics of population aging in Asia. It discusses the differences in the magnitude of the aged population in different parts of Asia and highlights the perennial concerns of care and support facing the aged and their families as Asian societies grapple with the graying population. Globalization is one important factor presenting new challenges as well as opportunities to aging Asia.