E3N-Générations is a premier French family health study aimed at exploring the connections between health and modern lifestyle across three generations. Initiated to gather comprehensive data, the study encompasses participants from diverse backgrounds to analyze health trends and their implications. E3N-Générations offers a range of services, including detailed online questionnaires that allow volunteers to contribute their health and lifestyle information, facilitating groundbreaking research.

Recently, the initiative has expanded by integrating physical activity trackers to monitor participants' exercise, sedentary behavior, and sleep patterns. The organization has received ISO 9001 certification, highlighting its commitment to data management quality. Ongoing research initiatives focus on critical health issues, such as the effects of dietary contaminants and lifestyle on diseases like Parkinson’s.

With over 139,000 registered volunteers, E3N-Générations continues to pioneer in e-epidemiology, striving for greater understanding of health dynamics within families. This innovative study invites descendants of previous participants to contribute as it seeks to enhance knowledge for future generations