Dementia prevalence and dementia risk in Indigenous Peoples: recent findings, current developments, and future directions.

Purpose of review: To highlight recent findings on the prevalence and risk and protective factors for dementia in Indigenous Peoples, who are disproportionately affected by health inequities driven by social determinants of health and historical injustices. With increasing numbers of Indigenous individuals entering older age, there is a growing need for research to better understand dementia and opportunities for prevention in Indigenous Peoples.

Recent findings: Recent studies highlight a wide range of dementia prevalence across Indigenous Peoples, with estimates varying significantly by methodology, socio-cultural context, and region with stark gaps in regional representation. Studies suggested that Indigenous Peoples show distinct profiles of dementia risk factors, including higher rates of cardiovascular disease, lower educational attainment, and socioeconomic disadvantage. However, traditional lifestyles, strong social ties, and culturally grounded practices are suggested to offer protective effects against cognitive decline.

Summary: Despite growing research attention, significant limitations remain in understanding dementia in Indigenous Peoples. The available evidence points to the need for culturally sensitive approaches in research and dementia prevention, as well as greater consideration of the social and environmental factors shaping brain health. Future research should aim to incorporate Indigenous knowledge systems and address the social determinants of dementia risk in Indigenous Peoples.