China is aging at an extraordinary speed and has the largest quantity of elderly persons in the world. Scholars utilize this unprecedented living experience of human being and the unique Chinese Longitudinal Healthy Longevity Survey (CLHLS) datasets with the aim to answer in this volume the following questions critical to the aging population world wide. Is the period of disability compressing or expanding with increasing life expectancy and what factors are associated with these trends in the recent decades? Is it possible to realize morbidity compression with a prolongation of the life span in the future? The first section of the book presents the CLHLS project's study design, sample distribution, contents of data collected, and assessments of age reporting and data quality. The remaining chapters are grouped into sections dealing with the demographic, social, economic, familial and psychological dimensions of healthy longevity.

Key research in the world's largest aging population - in China - has fed into this important new work, which aims to answer questions critical to older people worldwide. These include: is the period of disability compressing or expanding with increasing life expectancy and what factors are associated with these trends in the recent decades? And is it possible to realize morbidity compression with a prolongation of the life span in the future? Essential reading for gerontologists.