How optimism might protect memory and thinking as we age

Optimism and Dementia-Related Health Outcomes

NIH-funded research Harvard University D/b/a Harvard School of Public Health · NIH-11179340

This project will look at whether people who are more optimistic keep their memory and thinking skills better as they get older, and whether activity levels and biological factors help explain that link.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionHarvard University D/b/a Harvard School of Public Health NIH-funded
Lab location1 site (Boston, United States)
Project IDNIH-11179340 on NIH RePORTER

What this research studies

If you join, researchers will measure optimism, track thinking and memory over time, and collect information on physical activity using wearable accelerometers. They will also look at biological signals that might connect a hopeful outlook to brain health, such as markers from blood and the gut microbiome. The team will use data from adults across the lifespan to see which patterns predict slower cognitive decline. Findings will be used to point toward ways to help people protect thinking and memory as they age.

Who could benefit from this research

Good fit: Adults aged 21 and older, especially older adults worried about memory or at risk for Alzheimer's-related dementia, who can wear an activity monitor and provide health information or samples, are the most likely candidates.

Not a fit: People with advanced dementia who cannot complete cognitive testing, wear monitors, or provide samples are unlikely to benefit directly from participation.

Why it matters

Potential benefit: If successful, this work could point to new, modifiable targets—like boosting optimism or activity—that help prevent or slow age-related memory decline.

How similar studies have performed: Previous research has linked optimism to longer life and higher activity levels, but evidence specifically showing optimism protects against cognitive decline and the biological pathways involved is limited.

Where this research is happening

Boston, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Conditions Alzheimer's disease and related dementiaAlzheimer's disease and related disordersAlzheimer's disease or a related dementiaAlzheimer's disease or a related disorder
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.