Here is some encouraging news for anyone who thinks they are not active enough to make a difference: even a little movement may help support the brain for years to come.
A new study from UT Health San Antonio found that physical activity during midlife was associated with slower cognitive decline later in life. Researchers also found a connection between healthier blood sugar levels and slower cognitive decline among some participants.
The takeaway is refreshingly simple. You do not have to become a marathon runner to start supporting your brain health.
What Did the Study Find?
Researchers followed 402 adults from San Antonio, Texas. The participants were approximately 58 years old at the beginning of the study, 52% were Hispanic and nearly 59% were women.
The research team examined seven areas of cardiovascular health:
- Physical activity
- Blood sugar
- Blood pressure
- Cholesterol
- Diet
- Smoking
- Body mass index
Participants completed cognitive assessments later in life, allowing researchers to examine how their midlife health was associated with changes in memory and thinking over time.
Of all the factors studied, physical activity emerged as the most consistent protective factor.
Participants who reported at least some physical activity experienced a slower rate of cognitive decline than those who reported none.
Even a Little Movement May Matter
One of the most encouraging findings was that the benefit was not limited to people following intense exercise routines.
Any reported level of physical activity was associated with slower cognitive decline, particularly among the Mexican American participants in the study. Among this group, physical activity was associated with a 0.13-point slower annual decline on the Mini-Mental State Examination compared with no activity.
That does not mean one walk can prevent dementia. It does suggest that choosing some movement over none may make a meaningful difference over time.
Walking, stretching, dancing, gardening and participating in a group activity can all be ways to get the body moving. The best activity is often the one someone enjoys enough to keep doing.
What Does Blood Sugar Have to Do With Brain Health?
The study also found that fasting blood glucose below 126 mg/dL was associated with slower cognitive decline among non-Hispanic white participants after researchers adjusted for people leaving the study over time.
Blood sugar and brain health may seem like separate topics, but the heart, blood vessels and brain are closely connected.
Persistently high blood sugar can damage blood vessels and may contribute to changes in the brain over time.
However, the results differed between the study’s ethnic groups. Researchers stressed that larger and more diverse studies are needed before drawing broad conclusions about how these factors affect every population.
A blood glucose level should always be interpreted by a healthcare professional. Individuals should not change diabetes medications, diets or treatment plans based on one study.
Does Exercise Prevent Dementia?
This study does not prove that physical activity prevents dementia.
It was an observational study, meaning researchers identified relationships between health factors and cognitive decline. They did not randomly assign participants to exercise or blood sugar interventions, so they cannot say with certainty that those factors directly caused the outcomes.
Physical activity was also self-reported, which means the information depended on participants remembering and accurately describing how much they exercised.
Still, the results add to a growing body of research linking cardiovascular health with brain health. Researchers estimate that nearly 40% of Alzheimer’s cases may be connected to risk factors that could potentially be modified.
We cannot control every risk factor, including age or genetics. But movement, cardiovascular health and blood sugar management may give people practical areas to discuss with their healthcare providers.
Simple Ways to Add More Movement
Movement does not need to feel overwhelming.
A few approachable ideas include:
- Take a short walk. Start with a comfortable distance and build gradually.
- Stretch during the day. Gentle stretching can help support flexibility and mobility.
- Turn on some music. Dancing can combine movement, enjoyment and social connection.
- Choose seated exercises. Chair-based movements can be a helpful option for people with limited mobility.
- Make activity social. Walking or exercising with someone else can make movement more enjoyable.
- Ask for professional guidance. A rehabilitation or therapy professional can help identify activities that are appropriate for an individual’s abilities and health needs.
Before beginning a new exercise program, older adults and people living with chronic health conditions should speak with a healthcare professional.
Supporting Movement and Independence at Empire Care Centers
At Empire Care Centers, we understand that movement is about more than exercise. It can help residents maintain strength, participate in daily life and continue doing more of what matters to them.
Across our care centers, rehabilitation, therapy and engaging activity programming are part of a broader commitment to clinical excellence and compassionate care. Our teams work to meet residents at their current abilities and support meaningful progress through personalized care.
If changes in mobility, memory or daily functioning have you wondering what kind of support your loved one needs, connect with the Empire Care Centers team. We are here to listen, answer your questions and help you determine the right next step for your family.
This article is intended for general educational purposes and does not replace medical advice. Speak with a qualified healthcare professional before making changes to an exercise, diabetes or treatment plan.
Sources
- UT Health San Antonio. “Any Degree of Physical Activity May Slow Cognitive Decline, Particularly in Hispanics, UT Health San Antonio Study Suggests.” Published August 4, 2026.
- Vazquez, Janette, et al. “Longitudinal Association Between Midlife Cardiovascular Health and Cognitive Change in a Bi-Ethnic Cohort.” Alzheimer’s & Dementia: Behavior & Socioeconomics of Aging, vol. 2, 2026, article e70096. Published July 23, 2026. https://doi.org/10.1002/bsa3.70096.
- The University of Texas at San Antonio Health Science Center. “A Little Movement in Midlife Could Pay Off for Your Brain Years Later.” ScienceDaily, published August 16, 2026.
