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The Baltimore Longitudinal Study of Aging

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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.
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BLSA Data Use

Apply to use BLSA data in your research.

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Study Design and Measures

BLSA researchers measure physical and cognitive changes over time.

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Join the BLSA!

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

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About the BLSA

Read about the longest-running study of human aging.

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BLSA History

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

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BLSA Research Advances

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

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Thank You to Current Participants

A note of gratitude from BLSA researchers to current participants.

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What is Normal Aging?

Lessons from the BLSA.

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BLSA Participant Newsletters

Read the newsletters for research on BLSA research findings.