Few topics in healthy aging raise more questions than brain health. Families want to know what they can do, seniors want to keep doing the things they love, and senior care teams want to support both. Understanding what the research does and does not say about movement and the brain is a good place to start.
The numbers explain the urgency. The Alzheimer’s Association estimates that 7.4 million Americans age 65 and older are living with Alzheimer’s in 2026, about 1 in 9 people in that age group, and nearly 13 million family members and friends provide unpaid care [1].
Understanding the Evidence on Movement and Brain Health
Exercise has not been shown to prevent or cure Alzheimer’s disease or other dementias, and no program can promise an individual outcome. What the evidence does show is that purposeful movement is an important part of healthy aging and can support the physical and functional abilities that allow older adults to participate in life. Recent research also suggests the benefits may be more accessible than many people expect.
Small Amounts of Activity Are Linked to Meaningful Differences
A 2025 study led by the Johns Hopkins Bloomberg School of Public Health followed 89,667 adults, most in their 50s and older, who wore wrist trackers to measure activity [2]. Over an average of 4.4 years, researchers compared dementia diagnoses with weekly minutes of moderate-to-vigorous activity. Compared with people who recorded none, observed dementia risk was about 41% lower at up to 35 minutes a week, 60% lower at 35 to 70 minutes, 63% lower at 70 to 140 minutes, and 69% lower at 140 minutes or more. The pattern held for frail and nearly frail adults, too.
This was an observational study of adults in the United Kingdom, so it shows an association, not proof that activity alone prevents dementia, and the authors call for clinical trials to test it. Still, the message is encouraging: the biggest step is often from nothing to something.
Gentle Movement Counts, Too
The EXERT trial followed 296 sedentary older adults with amnestic mild cognitive impairment through 12 months of supervised exercise, three to four sessions a week [3]. One group did moderate-to-high-intensity aerobic exercise. The other did lower-intensity stretching, balance, and range-of-motion work. In both groups, cognition stayed stable over the year, and when researchers compared them with a matched group from another study who did not exercise, both exercise groups showed less cognitive decline.
Two caveats: the trial itself had no randomized no-exercise group, and participants were already living with mild memory problems. But the practical takeaway is powerful. Movement does not have to mean vigorous cardio. Appropriate, lower-intensity movement can be meaningful, and it can be adapted to each person’s ability.
Structure and Support Help
In the U.S. POINTER trial, 2,111 older adults at risk for cognitive decline followed one of two lifestyle programs for two years [4]. Both improved cognition, but the structured program showed greater improvement. It included facilitated peer team meetings, a prescribed activity plan with measurable goals, healthy eating, and cognitive and social activities. Exercise was one part of a multi-part program, but the lesson is clear: accountability, routine, and community make healthy habits easier to keep.
How Might Movement Help the Brain?
Researchers are studying several possibilities. Exercise can increase levels of BDNF, a protein involved in the growth, survival, and plasticity of brain cells. Regular activity is associated with healthier inflammatory responses, and it increases circulation, which can improve delivery of oxygen and nutrients to the brain. Scientists are also investigating signaling molecules released by working muscles, called myokines, for possible roles in brain health. These mechanisms are still being explored, and none is a guarantee.
Movement, Mood, and Connection
Brain health is about more than memory. The federal Physical Activity Guidelines for Americans link regular activity to reduced symptoms of anxiety and depression, better sleep, and improved quality of life [5]. The 2024 Lancet Commission on dementia identified 14 modifiable risk factors, including physical inactivity, depression, and social isolation, and estimated that nearly half of dementia cases worldwide could theoretically be prevented or delayed by addressing all of them [6]. That is a population-level, modeled estimate, not a promise for any one person, but it shows why movement, mood, and connection belong together.
Gratitude may be part of the picture, too. In a small experiment with older adults, a simple daily gratitude-writing exercise was linked to less loneliness and better self-reported health [7]. Group movement often brings those ingredients together: activity, laughter, routine, and people who know your name.
What Brain-Healthy Movement Looks Like in Practice
The federal guidelines suggest older adults aim for at least 150 minutes of moderate-intensity activity a week, muscle-strengthening activity on two or more days, and activities that include balance, while noting that some activity is always better than none [5]. In a community setting, that can look like:
- Strength: sit-to-stands, functional strengthening, controlled resistance work
- Balance: stability exercises, controlled weight shifts, supported balance work
- Mobility: walking, range-of-motion, and functional movement
- Cardiovascular activity: safe aerobic movement scaled to each person’s ability
- Social connection: group movement, conversation, and routine
- Consistency: purposeful movement built into the rhythm of the week
How Live 2 B Healthy® Fits In
Live 2 B Healthy® brings certified fitness professionals into senior living communities to deliver group classes and private and small group training, adapted to every ability level, including memory care. We measure balance, strength, and flexibility, giving residents and care teams a clear picture of progress over time.
For community leaders, a good starting question is: How is your community currently using movement to support brain health, mobility, and healthy aging? If the answer is “we’d like to do more,” that is where we can help add a consistent, adaptable movement component to your wellness strategy.
If you’re a senior living community interested in bringing a Live 2 B Healthy® senior wellness program to your residents, or an individual looking for exercise programs for seniors in your area, we’d love to connect.
Contact us today to learn more about our programs and find a location near you.
Sources & Citations
[1] Alzheimer’s Association. 2026 Alzheimer’s Disease Facts and Figures. https://www.alz.org/facts-and-figures | [2] Wanigatunga AA, et al. Moderate-to-vigorous physical activity at any dose reduces all-cause dementia risk regardless of frailty status. Journal of the American Medical Directors Association. 2025. https://doi.org/10.1016/j.jamda.2024.105456. Johns Hopkins release: https://www.eurekalert.org/news-releases/1074304 | [3] Baker LD, et al. Effects of exercise on cognition and Alzheimer’s biomarkers in a randomized controlled trial of adults with mild cognitive impairment: the EXERT study. Alzheimer’s & Dementia. 2025. https://doi.org/10.1002/alz.14586 | [4] Baker LD, et al. Structured vs self-guided multidomain lifestyle interventions for global cognitive function: the U.S. POINTER randomized clinical trial. JAMA. 2025. https://alz.org/us-pointer/study-results | [5] U.S. Department of Health and Human Services. Physical Activity Guidelines for Americans, 2nd edition. https://health.gov/sites/default/files/2019-09/Physical_Activity_Guidelines_2nd_edition.pdf | [6] Livingston G, et al. Dementia prevention, intervention, and care: 2024 report of the Lancet standing Commission. The Lancet. 2024. https://doi.org/10.1016/S0140-6736(24)01296-0 | [7] Arpin SN, Bartlett MY. Gratitude and loneliness: enhancing health and well-being in older adults. Research on Aging. 2019;41(8):772–793. https://doi.org/10.1177/0164027519845354… See More















