SAN DIEGO – The Department of Defense's Millennium Cohort Study is excited to announce the launch of its next follow-up survey for over a quarter of a million service members and veterans who previously enrolled in this landmark study. This longstanding research program, managed by the Naval Health Research Center (NHRC) in San Diego, is the largest and longest-running health study in military history and is designed to understand the long-term health effects of military service.
![Millennium Cohort Study Launches Follow-up Survey]()
