Study of health differences in urban and rural communities

This study follows working adults over time to learn how lifestyle and physical fitness affect long-term health. If you join, you'll help researchers understand how to prevent heart disease and other conditions.

This study follows adults who were born or are from Colombia’s Caribbean coast. The goal is to learn about health patterns in this community, but you would not be able to join if you meet certain medical or disability-related criteria.

This study follows adults living in Hamburg to better understand health and health-related factors over time. You may help researchers learn what influences health in this age group.

This study follows adults with heart-and-lung health information over time to understand how these conditions change. It may help researchers find patterns that could guide better care in the future.

This study looks at how to better sort people with heart disease into different risk groups. You may be asked for information about your heart condition and related health to help guide future care.

This study looks at how people’s oral health in adulthood relates to social factors and heart health. To join, you must have already taken part in specific past health surveys.