A major new study suggests that light exercise can help slow memory decline in seniors at risk for Alzheimer’s disease. The EXERT trial tracked nearly 300 sedentary older adults with amnestic mild cognitive impairment and found that both low-intensity activities—like stretching—and moderate-to-high intensity aerobic workouts helped keep cognitive function stable over 12 months. The findings appear in two papers in Alzheimer’s & Dementia and offer a practical path for families in Thailand facing an aging population.
In Thailand, dementia is a growing public health concern as the population ages. Thailand’s Ministry of Public Health projects that people aged 60 and over will exceed 25% of the population by 2030. Many families already shoulder the emotional and logistical challenges of caring for elders with memory loss. The EXERT results are especially relevant because they show that even those with joint or heart conditions can benefit from gentle, regular movement.
The EXERT study was led by researchers from the University of California San Diego and Wake Forest University. Participants, all adults with memory concerns, were randomly assigned to two programs: moderate-to-high intensity aerobic training (brisk walking or cycling) or low-intensity stretching, balance, and flexibility routines. Both groups trained three to four times weekly for a year under supervision, with regular cognitive testing and brain scans to monitor changes.
Key findings show that over 12 months, participants in both exercise groups maintained their cognitive abilities, while a non-exercising control group showed greater decline. MRI results indicated less atrophy in brain regions tied to memory and executive function, including parts of the prefrontal cortex, among those who exercised. Lead author Dr. Aladdin Shadyab of UC San Diego emphasized that even light activity may slow cognitive decline in at-risk older adults. Co-lead investigator Dr. Laura Baker of Wake Forest called EXERT a landmark trial, noting that exercise benefits several health areas and that researchers are still uncovering its full potential for memory health.
Some unexpected aspects emerged. Researchers anticipated some cognitive decline in exercisers, but the data showed stability rather than deterioration. They also acknowledged that simply being part of a study—providing social interaction and mental stimulation—could contribute protective effects. This aligns well with Thai cultural priorities, where family and community involvement already support elder well-being.
Context from prior science shows mixed results in cognitive decline prevention. EXERT stands out because of its size, rigor, and practical, scalable interventions. For Thai policymakers, the interventions are affordable and adaptable to community health centers, temples, or family homes. As Dr. Howard Feldman of the Alzheimer’s Disease Cooperative Study remarked, the study moves closer to real-world community implementation.
Thailand’s tradition of elder care—morning tai chi, temple group activities, and communal stretching—fits naturally with EXERT’s approach. Local senior clubs and health centers could revise existing programs to incorporate simple, low-cost routines that require minimal equipment. Community trainers or trained volunteers can supervise sessions, making it easier to reach frail or hesitant elders.
Turning these findings into action will require collaboration among healthcare providers, community leaders, and non-governmental organizations. Thailand’s public health plan to keep seniors active already emphasizes movement, but new results highlighting low- and moderate-intensity activity could broaden outreach. Campaigns that promote the message “a little movement goes a long way for memory” can demystify dementia prevention and encourage practical steps.
Experts agree there is no guaranteed way to prevent Alzheimer’s, but lifestyle factors like physical activity remain one of the most feasible strategies. Thai readers can take this as an invitation to act: join a local tai chi group, start a daily neighborhood walk, or practice temple courtyard stretching with elders.
Practical steps for Thai families and communities:
- Encourage elders with memory concerns to join group movement sessions or at-home stretching 3–4 times per week.
- Use local health centers and senior clubs to offer simple, EXERT-inspired routines with minimal equipment.
- Promote social and intellectual engagement as part of a holistic memory-protection strategy.
- Launch public awareness campaigns to dispel myths about dementia and highlight prevention through gentle activity.
- Work with village health volunteers to support rural elders with movement routines and memory health activities.
For more on the science, review the EXERT trial’s main publication in Alzheimer’s & Dementia. Data and summaries from the study’s authors and related institutional updates can be followed through professional channels and publications.
This evolving evidence suggests that Thailand can lead regional dementia prevention by blending rigorous research with traditional community practices. A small, steady habit of movement could make a meaningful difference for elders and those who care for them.