Normative Aging Study

The Normative Aging Study (NAS) is a longitudinal study which studies the effects of aging on various health issues. The ongoing study was established in 1963 by the United States Department of Veterans Affairs.

Participants in the study have undergone medical examinations every three to five years, also answering questions about behaviors affecting health.

Among the topics researchers have used the NAS for are stress, smoking, and cardiac health.