Skip to main content
U.S. flag

An official website of the United States government

The Baltimore Longitudinal Study of Aging

Arms extending their hands together in a "all in" pose.

America's Longest-Running Study of Human Aging

The National Institute on Aging’s Baltimore Longitudinal Study of Aging (BLSA) answers critical questions about what happens as people get older.

BLSA Data Use

Apply to use BLSA data in your research.

Man doing grip strength test

Study Design and Measures

BLSA researchers measure physical and cognitive changes over time.

Doctor with older patient

Join the BLSA!

Learn how you can join the BLSA and make a difference in aging research.

Chart with magnifying glass

About the BLSA

Read about the longest-running study of human aging.

Abstract image showing progress

BLSA History

The BLSA began in 1958. Read about its history and timeline.

Arrows pointing forward

BLSA Research Advances

Learn how the BLSA has furthered our understanding of human aging.

Dr. Ferrucci and researcher reviewing data

Thank You to Current Participants

A note of gratitude from BLSA researchers to current participants.

Puzzle pieces fitting together

What is Normal Aging?

Lessons from the BLSA.

tv screens

BLSA Participant Newsletters

Read the newsletters for research on BLSA research findings.