Brain health scores rose in adults in an online program
A trial without a control group tracked 3,966 adults aged 19–94 for up to three years and linked greater program use to larger gains.
Non-randomized trial, registered NCT04869111
Limit: Increased motivation or curiosity could explain both greater engagement and higher brain health scores
Edited by Boris Djordjevic · AgingResearch.News
A trial with no control group followed 3,966 adults aged 19–94 in the online BrainHealth Project for up to three years. The program offered training in thinking strategies, lessons on sleep and stress, and coaching every three months. Participants completed the BrainHealth Index at six-month intervals. This measured thinking abilities, social and purpose-driven engagement, and emotional well-being. The analysis included participants with at least two assessments.
Overall scores and all three components improved over the study period, across starting score levels. Greater use of training, coaching, daily habits and other resources was associated with larger gains. This pattern did not significantly differ by age or gender. Education had a small influence on gains among those with modest program use.
Why it matters
Maintaining cognitive, social and emotional well-being is the goal of extending brain health span. The authors see scalable online programs as a potential way to help reduce years of cognitive decline.
Caveats
Without a control group, the trial cannot establish that the program caused the score gains. Improved index scores do not establish a longer brain health span, and the authors identified retention and demographic diversity as priorities.
From the paper
- Participants
The final dataset comprised 3,966 participants, which were included in the statistical analyses.
- Who took part
The current BrainHealth Project study reports on a large prospective sample of generally healthy adults followed over an interval of 3 years, drawn from the ongoing longitudinal study.
- Ages
The study targets generally healthy adults aged 18 years and older who are fluent in English, have regular access to an internet connection and device, and are able to hear and read information presented on a computer screen or mobile device.
- Limitation
First, we acknowledge this is a single-arm interventional study and not a randomized control trial, so causal inferences may be limited.
- BrainHealth Index
When comparing baseline and 3-year timepoints (T7-T1), the overall gain was also highly significant, reflecting a very large effect size.
- BrainHealth Index gains
Utilization had an impact on degree of change across all index measures.
Quoted word for word from the full text on PubMed Central.
The paper
Measuring and increasing the brain health span across adulthood: a public health imperative
The University of Texas at Dallas
Scientific Reports, May 2, 2026, Open access
