Healthy Brain Aging Study

What keeps a brain healthy with age? 240 cognitively healthy adults aged 60 and over wore a wrist device for two weeks each year and took a short set of cognitive tests, for three years.

• hba-annual: one row per person and year: average sleep_hours and sleep_efficiency_pct, daily_steps, moca and the Digit Symbol Substitution score.

Participants were recruited from the community through the ADRC’s outreach programme, with a focus on groups under-represented in research. Recruitment materials are in docs/participant_brochure.pdf.

Cole B, Alvarez S, et al. Healthy Brain Aging Study, years 1–3. Stanford ADRC, 2026. Funded by NIH/NIA grant P30AG066515.