New studies from the British Journal of Sports Medicine, The Lancet and the WHO are reshaping how we think about daily walking: it's not the step count alone that matters, but how long each walking bout lasts. Building a longer, uninterrupted walk into your daily routine may protect your heart, add years of life expectancy — and do your mind some good too.
The myth of 10,000 steps
Ten thousand steps has been the go-to benchmark for an active lifestyle for decades. The figure, however, doesn't come from scientific recommendations at all — it originates from a 1965 Japanese marketing campaign promoting a pedometer called "Manpo-kei" ("10,000-step meter"). Since then, the target has taken on a life of its own in public consciousness, without ever being based on a systematic health study.
What a major study on walking-bout duration shows
A prospective cohort study published in 2025 in Annals of Internal Medicine examined 33,560 adults from the UK Biobank (mean age 62) who averaged 8,000 or fewer daily steps and were free of cardiovascular disease and cancer at baseline. Participants were categorised by the length of the bout in which they accumulated most of their steps: under 5 minutes, 5 to under 10 minutes, 10 to under 15 minutes, or 15 minutes or more.
The key finding: at the same total step count, people who accumulated most of their steps in longer, sustained bouts had a lower risk of cardiovascular events and lower all-cause mortality than those who reached the same step count through many short bursts. Important context: this is an observational study showing an association, not a controlled trial proving causation — people who manage longer walking bouts may also differ from those who don't in other, unmeasured ways.
What the life-expectancy study in the British Journal of Sports Medicine shows
A widely discussed modelling study by Veerman and colleagues (British Journal of Sports Medicine, 2025) used a life-table model to estimate how different activity levels affect life expectancy in US adults aged 40 and over. The findings:
- If everyone were as active as the most active 25% of the population, people aged 40 and over could, on average, live 5.3 years longer than if activity were at the level of the least active 25%.
- For the least active group, the modelled gain per additional hour of walking was largest: in the model, one extra hour of walking corresponded, on average, to roughly 6.3 additional hours of life expectancy for this group — a striking ratio, but hours of life gained, not years per hour walked.
- According to the model, the health benefit is greatest for those who were previously least active; for people who are already very active, the additional gain is smaller.
Here too: this is a model-based estimate built on observational data, not an experimental study measuring an individual's actual increase in lifespan.
Why even five extra minutes count
A large international individual-participant-data meta-analysis of several cohort studies (Ekelund et al., The Lancet, January 2026), covering data from more than 135,000 adults in Norway, Sweden, the UK and the US, estimated how many deaths could theoretically be averted through small, realistic increases in physical activity. For the least active roughly 20% of the population, an extra 5 minutes per day of moderate-to-vigorous activity could theoretically avert up to 6% of deaths within that group; when everyone except the most active roughly 20% is included, the estimated share rises to as much as 10%. Reducing daily sedentary time by 30 minutes was also linked to a — smaller, but still meaningful — estimated reduction in mortality. Small changes, a potentially large effect at the population level.
Why the duration of a walking bout seems to matter
One possible physiological explanation: the body needs a few minutes to shift more strongly from short-term energy stores towards burning fatty acids, and heart rate and blood pressure only stabilise into a steady, health-supporting range after some time. The anti-inflammatory effects of regular activity that benefit the cardiovascular system long-term are also thought to depend more on sustained rather than brief, flickering activity. These mechanisms offer a plausible explanation for the differences seen in the observational studies, but they are themselves still the subject of ongoing physiological research.
What the WHO says in 2026 about walking and mental health
In January 2026, the World Health Organization's Regional Office for Europe published a policy brief — "Promoting mental health through cycling and walking: a win-win approach for health and sustainability" — summarising existing review evidence on how active mobility affects mental health. Its key points:
- Regular walking and cycling are associated with reduced symptoms of anxiety and depression.
- Active mobility is associated with improved self-esteem and general psychological well-being across age groups.
- Even short walking bouts of 5 to 10 minutes are associated with a short-term improvement in mood.
The WHO describes active mobility as a "win-win approach" that can simultaneously support mental health, physical activity and environmental sustainability. Possible mechanisms discussed include the release of endorphins, improved oxygen supply to the brain, and a break from stressful rumination.
Walking, creativity and cognitive performance
That walking clears the head is a common experience — and it has a scientific basis. In a widely cited Stanford study (Oppezzo & Schwartz, 2014), participants completed creative divergent-thinking tasks (finding as many different uses as possible for an everyday object) both while seated and while walking. Walking increased creative output for most participants by an average of around 60% — regardless of whether they walked on a treadmill or outdoors — and the effect partly persisted even after participants sat back down. For tasks with a single correct answer (convergent thinking), however, walking showed no comparable advantage — movement appears to specifically boost divergent, idea-generating thinking rather than every form of cognitive performance equally.
What walking can mean for metabolism and blood sugar
Walking affects metabolism beyond simple calorie burning. Several controlled studies and a meta-analysis on post-meal exercise show that a short walk of roughly 10 to 15 minutes after a meal can noticeably blunt the rise in blood glucose over the following one to two hours — in studies, often in the rough range of 20 to 30% compared with remaining seated, though the exact size depends heavily on the meal, timing and study design. Even brief walking breaks of just a few minutes, taken several times throughout the day, have shown a measurable effect on the blood-glucose curve in studies. Regular walking is also associated with improved insulin sensitivity — one of the key protective factors against developing type 2 diabetes.
Five strategies for more walking in daily life
| Strategy | How to apply it |
|---|---|
| Use small windows of time | Based on the studies above, even 5 to 10 extra minutes of walking a day can be worthwhile, especially for people who are currently less active. |
| Make your lunch break active | A 10- to 15-minute walk after eating may blunt the rise in blood sugar and support afternoon concentration. |
| Introduce walking meetings | Meetings held while walking combine movement with work time and may support divergent, creative thinking. |
| Deliberately choose longer routes | Getting off one stop early or parking further away — small choices that add up over a week. |
| Walk together | Walking with friends or colleagues often increases motivation to stay consistent. |
Conclusion: count less, walk longer
Current research puts rigid step targets like the 10,000-steps rule into perspective. What repeatedly emerges as relevant across the studies discussed here isn't a specific number, but the duration and regularity of movement — together with the simple, well-supported finding that even small additional amounts of activity can make a measurable difference for people who are currently less active. Building a longer daily walk into your routine — whether that's 15 minutes after lunch or an evening stroll — may support the heart, metabolism and mind alike. The underlying studies are mostly observational data and modelling estimates; they show robust statistical associations, not experimentally proven causal effects for any given individual.
This article is intended for general information about the relationship between physical activity, heart health and mental well-being and does not replace medical advice, diagnosis or treatment. If you have health concerns, please consult a doctor or pharmacist.
Sources
- Del Pozo Cruz B, Ahmadi M, Sabag A, Saint Maurice PF, Lee IM, Stamatakis E: Step Accumulation Patterns and Risk for Cardiovascular Events and Mortality Among Suboptimally Active Adults. Ann Intern Med. 2025;178(12):1718–1727. doi: 10.7326/ANNALS-25-01547
- Veerman L, Tarp J, Wijaya R, Wanjau MN, Möller H, Haigh F, Lucas P, Milat A: Physical activity and life expectancy: a life-table analysis. Br J Sports Med. 2025;59(5):333–338. doi: 10.1136/bjsports-2024-108125
- Ekelund U, Tarp J, Ding D, Sanchez-Lastra MA, Dalene KE, Anderssen SA, Steene-Johannessen J, Hansen BH, Morseth B, Hopstock LA, Sagelv E, Nordström P, Nordström A, Hagströmer M, Dohrn IM, Diaz KM, Hooker S, Howard VJ, Lee IM, Fagerland MW: Deaths potentially averted by small changes in physical activity and sedentary time: an individual participant data meta-analysis of prospective cohort studies. Lancet. 2026;407(10526):339–349. doi: 10.1016/S0140-6736(25)02219-6
- WHO Regional Office for Europe: Promoting mental health through cycling and walking: a win-win approach for health and sustainability. Copenhagen: WHO; 2026. WHO/EURO:2026-12905-52679-81719. who.int
- Oppezzo M, Schwartz DL: Give your ideas some legs: the positive effect of walking on creative thinking. J Exp Psychol Learn Mem Cogn. 2014;40(4):1142–1152. doi: 10.1037/a0036577
