1 The Aging of Human Populations:  The Significance of an Epidemiological Perspective

2 Aging, Health, and the Environment:  An Ecological Model

3 Survival, Mortality, and Cause of Death

4 Physical Functioning and Activities of Everyday Life

5 Cognitive Functioning

6 Depression

7 Falls, Injuries, and Automobile Crashes

8 Disease and Comorbidities

9 General Health, Frailty, and Successful Aging

10 Conducting Epidemiological Studies in Older Populations

11 Healthy Aging and Its Implications for Public Health Practice

12 New Directions for Research and Policy