{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T10:13:46Z","timestamp":1790849626143,"version":"4.1.0"},"reference-count":78,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T00:00:00Z","timestamp":1781568000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Public Health"],"abstract":"<jats:p>As a major contributor to disability and loss of independence in older adults, cognitive decline poses growing public health challenge in aging societies worldwide. Although pharmacological therapies, cognitive training, and conventional exercise may provide benefits in selected contexts, their real-world impact is often limited by modest efficacy, poor long-term adherence, or difficulties with integration into daily life. Exercise snacks, defined as brief and structured bouts of activity performed intermittently across the day, have emerged as a potentially feasible and low-burden approach for supporting cognitive health in later life. In this Perspective, we examine the potential relevance of exercise snacks to cognitive health in older adults. We argue that their value may lie not only in possible physiological effects, but also in their flexibility and implementability in everyday routines. However, direct evidence linking exercise snacks to cognitive outcomes in older adults remains limited, and much of the available literature is heterogeneous in design, short in duration, and focused on acute or indirect outcomes. We therefore distinguish direct cognitive evidence from broader mechanistic inferences and discuss several plausible pathways, including neurobiological, metabolic, and psychosocial processes. We also highlight major research gaps and outline priorities for future work, including clearer definitions, longer-term trials, more sensitive cognitive outcomes, and real-world implementation strategies. If these issues are addressed, exercise snacks may become a practical strategy for supporting cognitive resilience in later life.<\/jats:p>","DOI":"10.3389\/fpubh.2026.1850516","type":"journal-article","created":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T04:28:42Z","timestamp":1781584122000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Exercise snacks and cognitive health in older adults: mechanisms, implementation, and public health relevance"],"prefix":"10.3389","volume":"14","author":[{"given":"Xianjun","family":"Liu","sequence":"first","affiliation":[{"name":"School of General Education, Dalian University of Technology","place":["Dalian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yibing","family":"Xia","sequence":"additional","affiliation":[{"name":"School of General Education, Dalian University of Technology","place":["Dalian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinman","family":"Gao","sequence":"additional","affiliation":[{"name":"School of General Education, Dalian University of Technology","place":["Dalian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rui","family":"Wang","sequence":"additional","affiliation":[{"name":"Dalian School of Economics and Trade","place":["Dalian, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,6,16]]},"reference":[{"key":"ref1","volume-title":"World Alzheimer Report 2025: Reimagining Life With Dementia \u2013 The Power of Rehabilitation","author":"Jeon","year":"2025"},{"key":"ref2","volume-title":"Ageing and health","year":"2025"},{"key":"ref3","doi-asserted-by":"publisher","first-page":"e0210036","DOI":"10.1371\/journal.pone.0210036","article-title":"Dose-response relationship between exercise and cognitive function in older adults with and 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