How our understanding of walking evolved
Walking is one of the most-studied interventions in modern medicine. Here is how the recommendation matured.
Where the evidence stands today
Daily walking — particularly after meals — has strong evidence for cardiovascular, metabolic, and cognitive health, with benefits appearing well below the popular '10,000 steps' figure.
1953
Morris London bus study
Bus conductors (active) had half the coronary heart-disease rate of drivers (sedentary) — the first modern evidence for occupational activity.
1965
Yamasa Tokei markets 'Manpo-kei'
The '10,000 steps meter' was a marketing figure in Japan — not a clinical target. This is often forgotten.
2007
Post-meal walking evidence emerges
Small trials suggest walks after meals reduce postprandial glucose more than a single longer walk elsewhere in the day.
2020
JAMA step-count analysis
US cohort: mortality risk falls sharply between 4,000 and 8,000 steps a day; plateaus around 10,000. Intensity mattered less than volume.
Source: JAMA
2022
Nature Medicine step study
Even 3,800 steps per day associated with lower dementia risk in older adults.
Source: Nat Med
2025
ESC endorses post-meal walking
European Society of Cardiology formally endorses the 10–15 minute post-meal walk as first-line lifestyle guidance for post-prandial glucose control.
Science is a moving picture, not a snapshot. See what's currently under review and how Hakim reasons about evidence.