#TheLancet

A landmark review in The Lancet reinforces a simple truth: regular exercise helps protect the aging brain. The study outlines several ways physical activity supports cognitive function, potentially lowering dementia risk and promoting sharper thinking across the lifespan. For Thailand’s aging population, these insights come with timely practical implications, highlighting fitness as an affordable, scalable pathway to brain health.

In Thailand, more than 15% of people are over 60, placing dementia and related conditions high on the national health agenda. While genetics matter, lifestyle choices like consistent exercise remain among the most accessible strategies to build cognitive resilience. The new review explains how activity stimulates brain cell growth, strengthens neural connections, and raises brain-derived neurotrophic factors that support learning and memory. Exercise also benefits heart health, reduces chronic inflammation, and helps regulate blood sugar and blood pressure—factors closely tied to cognitive performance and dementia risk. Together, these mechanisms can delay or lessen memory decline in ageing populations.

A growing body of scientific research is shedding new light on the powerful ways that regular exercise can protect the brain as people age, supporting sharper thinking and potentially lowering the risk of dementia. The latest review, published in The Lancet, details multiple neuroprotective mechanisms by which physical activity benefits the ageing brain, amplifying longstanding calls for Thais—and people worldwide—to prioritise fitness for lifelong cognitive health The Lancet.

This news carries significant implications for Thailand’s rapidly ageing society. With more than 15% of the population now over 60, the Kingdom faces surging rates of dementia and related disorders, making brain health a national priority. While genetics and other factors do play a role, the new review points out that lifestyle interventions like exercise remain among the most accessible and cost-effective measures to promote cognitive resilience in later years.