A pivotal randomised controlled trial led by Dr. Kirk Erickson at the University of Pittsburgh presents compelling evidence for the neurological benefits of walking. Researchers found that older adults engaging in just 40 minutes of moderate walking three times weekly achieved a 2% increase in hippocampal volume within a single year—directly reversing one to two years of age-related cognitive decline.
This statistic gains additional significance when considered alongside data from a large prospective cohort study of 383,681 adults, which demonstrated that increasing daily activity to under three hours of moderate movement may extend lifespan by an average of 11 years in the least active populations. The consistency of these findings across diverse study populations and methodologies confirms that walking functions as a robust, evidence-based intervention for brain health maintenance.
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