A new Lancet study highlights how regular physical activity protects brain health as we age, potentially lowering the risk of dementia and other cognitive conditions. The findings are especially relevant for Thailand, where an aging population makes brain health a growing concern for families and the health system.
Thailand’s population is aging rapidly, with projections suggesting more than 20% of residents will be 60 or older by 2025. The study reinforces a long-standing Thai belief in “kaeng raeng”—robust health through movement—showing that exercise does more than keep the body fit. It activates molecular and cellular processes that shield brain tissue from age-related decline.
The research indicates that consistent aerobic and moderate-intensity activities such as brisk walking, cycling, and swimming promote neurogenesis in memory- and cognition-related brain regions. Exercise increases cerebral blood flow, improving oxygen and nutrient delivery, and boosts neurotrophic factors like brain-derived neurotrophic factor (BDNF), which supports neuron growth and repair. Collectively, these changes reduce inflammation and strengthen the brain’s resilience to aging-related stressors.
Experts in the Lancet study note that physical fitness not only supports cognition but can also delay the onset of neurodegenerative diseases by several years. Thai clinicians from leading hospitals report similar observations in local patients. A Thai neurologist from a major university hospital emphasized that exercise is increasingly seen as medicine for both body and mind, with movement-based interventions becoming more common in memory clinics around Bangkok and Chiang Mai.
The implications for Thailand are significant. To address rising dementia cases, public health strategies should promote accessible, culturally relevant forms of exercise—such as traditional Thai dance, folk games, and community aerobic sessions. This approach aligns with Thai traditional health concepts that advocate continuous movement to sustain vitality in old age.
Historically, Thai elders have engaged in circle dancing, gentle stretching, and walking in temple grounds—activities echoing the moderate exercise recommended by the Lancet study. Integrating scientific insights with local practice could shape public campaigns and policies, including senior-friendly exercise programs or movement routines at temples and community centers.
Looking ahead, policymakers and healthcare providers are urged to expand investment in active aging. Making exercise programs widely available and affordable—whether in urban neighborhoods or rural villages—will be crucial. Ongoing research into the optimal dose, type, and frequency of activity will help tailor guidance for Thailand. Families can support elders by joining daily walks, sharing activities, and using simple tools to track progress or gamify exercise.
Practical steps for Thai readers include aiming for at least 150 minutes of moderate activity weekly, enjoying group activities, and consulting healthcare professionals about suitable routines, especially if chronic conditions exist. The study authors and local health experts agree: regular movement is a powerful, accessible way to protect the brain and improve quality of life in later years.
For deeper context, consider the Lancet study in conjunction with global guidance on physical activity for older adults from international health authorities, and always align activities with local health recommendations from Thailand’s Ministry of Public Health.