Why Running is Better Than Walking
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For most people, most of the time, walking is the more practical, accessible, and sustainable choice. But if your body can handle it, running delivers a set of physiological adaptations that walking simply cannot replicate.
The greater stress it places on your heart, lungs, bones, muscles, and nervous system is not a downside - it’s the driving force behind its health benefits.
1. More Health Benefits Per Minute
Running can burn three times as many calories per minute, and up to twice as many calories per mile.
Studies have shown similar health effects between walkers and runners when the total amount of calories burned is the same. However, running beats walking when the total amount of time spent exercising is the same [1].
Put simply, a 30-minute run produces greater health benefits than a 30-minute walk. In fact, a 15-minute run will probably beat, or at least equal, the health benefits of a 30-minute walk.
So, for people with busy lives who don’t have time for exercise, running is a more efficient use of that time. The same cardiovascular and metabolic gains can be achieved in half the time.
Pro Tip
The current physical activity guidelines recognise this — 75 minutes of vigorous activity (like running) per week is considered equivalent to 150 minutes of moderate activity (like brisk walking) [2].
2. Better Cardiovascular Responses
Running places a substantially higher demand on the heart and blood vessels than walking does.
Over time, this greater stress usually produces greater cardiovascular adaptation: stronger, more efficient heart muscles, lower resting heart rate, better blood vessels, lower blood pressure, and better circulation.
Higher intensity exercise has been shown to produce superior improvements in cardiovascular risk markers compared to moderate-intensity exercise, even when the total amount of exercise is the same [3].
For people looking to meaningfully improve their heart health, not just maintain it, running will be the more powerful exercise stimulus to improve health.
3. Improves VO2max More
VO2max, the maximum volume of oxygen your body can use during intense exercise, is one of the single strongest predictors of long-term health and longevity, and you can meaningfully improve it.
Low VO2max is associated with increased risk of many diseases, quality of life and life expectancy.
Walking can modestly improve VO2max in people who are inactive. But running, at moderate-to-hard efforts, is one of the most effective and efficient ways to improve VO2max.
A higher VO2max means your heart, lungs, and muscles operate more efficiently at every exercise intensity — including during everyday activities (making them easier to do).
So, improving it through running is one of the best long-term investments you can make in your health.
Workout — VO2max builder
After a 5-minute warm-up walk, run at a "comfortably hard" pace (you can speak only in short phrases) for 20–30 minutes, three times per week — progress by adding 5 minutes every week or two.
Pro Tip
Read our articles on how to improve your VO2max and how to calculate and use training zones to improve your training
4. It Builds Stronger Bones
Bone is a living tissue that responds and adapts to your movement demands. When you bones are exposed to stress and impact forces your bones are exposed to (from moving), they’ll get stronger.
While walking does stimulate bone-building benefits, the higher forces that your body is exposed to during running produce a stronger signal to improve bone strength and bone density [4].
This matters more as you get older. Osteoporosis affects a lot of seniors and significantly increases fracture risk.
Running regularly and starting earlier in life can help build and preserve bone health. For those at risk of osteoporosis who cannot run, brisk walking is still beneficial — but for those who can run, it offers more benefits.
5. Running Does Build (and Strengthen) Muscle
Running engages all the muscles of the lower body (glutes, hamstrings, quadriceps, calves), putting them under greater load than walking does. This greater demand over time translates to better muscle strength, endurance, and coordination.
Greater muscle mass and strength are associated with better health, functional capacity, and lower injury risk as you age. And the “propulsive phase” of running, where you push off the ground, activates your calves, glutes and hamstrings in a way that walking can’t.
Running won't replace strength training benefits, but its muscular demands are meaningfully greater than walking's.
Workout — Hill repeats for Muscles
Find a moderate incline and run uphill for 30–60 seconds at a strong effort, then walk back down to recover. Repeat 6–10 times. Hill running dramatically increases the use of your quads and calves compared to flat-ground walking or running [5].
6. Respiratory System Benefits
The lungs, just like the heart, bone and muscles, will adapt to the demands placed on them. As you’re probably aware, if you’ve ever been on a hard run, it significantly increases how often and deeply you breathe, which strengthens your respiratory muscles.
This improves how efficiently you breathe as you become better at extracting and delivering oxygen into your body. Walking doesn’t elevate your breathing rate sufficiently to the same degree.
For people with respiratory conditions (like asthma, COPD, pneumonia or viral infections), supervised running programmes have been shown to improve lung function and general health [2].
Getting oxygen into your body efficiently isn’t just for athletes and powering exercise performance — it also underpins your energy levels, brain power, and resilience throughout the day.
7. It Suppresses Your Appetite More
High-intensity exercise, like running, suppresses a “hunger hormone” (ghrelin) for longer than lower-intensity exercise [6].
This means that you’ll eat less food after a hard run compared to a gentle stroll. For people who want to lose weight or lose fat, running may have an edge over walking. Higher intensity exercise may make it easier for those who are following calorie deficits.
However, don’t give up on walking entirely, as research has shown that both walking and running naturally increase the amount of the hunger-suppressing “fat jab hormone” GLP-1 and another one called PYY, compared to doing no exercise at all.
8. Life Expectancy & General Health
While both walking and running improve health, quality of life and life expectancy, the evidence on running is more convincing.
Even running as little as 5 minutes a day at slow speeds (10-minute mile pace or slower) is associated with better life expectancy and lower rates of cardiovascular disease [7].
Running is enough in itself to improve your health without worrying about volume, times, heart rates or your pace.
Those who kept running regularly for at least 6 years were in the best health and lived longest. So the message is clear: running consistently, at any pace, is one of the most powerful single lifestyle habits you can do for a longer, healthier life.
How to Start (or Return to) Running
When starting out, it shouldn’t be about speed but consistency and avoiding injury.
Complete beginner
Use a structured walk-to-run programme. Start with intervals of 1 minute running, 2 minutes walking for 20 minutes total. Over 6–8 weeks, gradually extend the running intervals and reduce the walking recovery until you can run continuously for 30 minutes.
Returning after a break
Start at no more than 50% of your previous volume, and increase by no more than 10% per week. Resist the urge to pick up where you left off.
Pace
Most of your running (around 80%) should be at a comfortable, conversational pace (“zone 1”) or marathon pace — "easy running" is not wasted running. It builds aerobic base, reduces injury risk, and supports recovery.
Rest days
Take at least two full (ideally consecutive) rest or walking days per week. Gains from running happen during recovery, not during the run itself.
Footwear
Visit a specialist running shop for a gait assessment before buying shoes. It will cost you, but appropriate footwear is probably the single most cost-effective injury prevention tool around.
The Bottom Line
Walking is great, and we stand fully behind it as the most accessible, universal, and underrated form of exercise.
But if your body allows it, running offers a specific set of adaptations — to the heart, lungs, bones, muscles, and hormonal system — that walking cannot replicate.
The key is not to run hard or fast, but to run regularly, run sensibly, and build gradually. Done that way, running is one of the most powerful health habits available to us. Walk when you need to. Run when you can.
Sources
1. Williams PT, Thompson PD. Walking versus running for hypertension, cholesterol, and diabetes mellitus risk reduction. Arteriosclerosis, Thrombosis, and Vascular Biology. 2013;33(5):1085–1091. PMID: 23559628
2. Haskell WL et al. Physical activity and public health: updated recommendation for adults from the American College of Sports Medicine and the American Heart Association. Medicine & Science in Sports & Exercise. 2007;39(8):1423–1434. PMID: 17762377
3. Swain DP, Franklin BA. Comparison of cardioprotective benefits of vigorous versus moderate intensity aerobic exercise. American Journal of Cardiology. 2006;97(1):141–147. PMID: 16377300
4. Nikander R et al. Loading modalities and bone structures at nonweight-bearing upper extremity and weight-bearing lower extremity: a pQCT study of adult female athletes. Bone. 2006;39(4):886–894. PMID: 16731064
5. Sloniger MA et al. Lower extremity muscle activation during horizontal and uphill running. J Appl Physiol (1985). 1997 Dec;83(6):2073-9. PMID: 9390983
6. Hu M et al. Acute effect of high-intensity interval training versus moderate-intensity continuous training on appetite-regulating gut hormones in healthy adults: A systematic review and meta-analysis. Heliyon. 2023 Jan 21;9(2):e13129. PMID: 36747559
7. Lee DC et al. Leisure-time running reduces all-cause and cardiovascular mortality risk. Journal of the American College of Cardiology. 2014;64(5):472–481. PMID: 25082581
Written by the Alphabet Guides Editorial Team
Lead Author: PhD Exercise Physiologist ✅
Published: 26 March 2026
Our aim is to provide independent, evidence-based, transparent, accurate and reliable information you can trust. Learn more about our Editorial Standards.
Disclaimer: The information on this website is for educational purposes only. It should not be used as a substitute for medical advice from a qualified healthcare professional.