The ABCD 6.1 patch release is now available!

The release includes new summary scores, as well as data and metadata fixes.

The Fall 2025 ABCD Study Newsletter is now available!

Fentanyl: What You Need to Know

Learn about risks, along with helpful resources, in this new Infographic

Genetic Results for ABCD Study Participants

Participants age 18 or older can choose to receive their personal genetic results.

We’re live! Welcome to the official ABCD Instagram page!

Follow @theabcdstudy to get the latest updates, insights, and discoveries about ABCD

Over 1,500 papers related to the ABCD Study® have been published

VIEW PUBLICATIONS

Participant Resources

ABCD participants can now access resume and career resources, as well as information on substance use risk and prevention, on the ABCD website!

View the New Information!

The NIH Brain Development Cohorts (NBDC) Biospecimen Access Program has now launched!

Adolescent Brain Cognitive Development

The ABCD Study® is the largest long-term study of brain development and child health in the United States.

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