Take the stairs for 3 flights every workday
Short, brisk stair climbs a few days a week raised fitness within six weeks in small studies of inactive adults.
The elevator doors open in the lobby, and a small crowd shuffles in holding coffee and phones. A few steps away, the stairwell door sits closed and mostly forgotten. Climbing a few flights there each workday morning takes under a minute, and in small studies that kind of short climb made inactive adults measurably fitter.
What it helps with
Low fitness
Short, brisk stair climbs a few days a week raised fitness within six weeks in small studies of inactive adults.
No time to exercise
Studies show stair climbs lasting under a minute, repeated through the week, can still improve fitness in inactive people.
Key facts
- 1In a 2019 trial, inactive young adults who briskly climbed three flights, three times a day, three days a week, improved fitness in six weeks.
- 2Inactive young women who did three 20-second stair sprints, three times a week, raised their fitness by about 12% in six weeks.
- 3In an eight-week study, inactive women who built up to six stair climbs a day improved fitness by about 17% and lowered LDL cholesterol.
- 4In a long-running study of Harvard alumni, men who were more active, counting stairs climbed, walking and sport, tended to live longer.
Why the stairs are worth it
Cardiorespiratory fitness, meaning how well your heart and lungs supply oxygen when you move, is one of the clearest signs of long-term health. The most common reason people give for skipping exercise is lack of time. Stairs sidestep that problem, because you were going up anyway. The whole habit fits in one plain idea: take the stairs by default.
Climbing stairs at a brisk pace counts as vigorous activity, the kind that leaves you breathing hard after a short stretch. Public guidance suggests about 75 minutes of vigorous or 150 minutes of moderate activity a week. A few flights won't cover that on their own, but they add real minutes without asking for any extra time.
How a minute of climbing works
Every step lifts your whole body weight against gravity. Your large leg muscles work hard and need more oxygen, so your heart rate rises within seconds. Repeated over weeks, that short challenge trains your heart to pump more blood and your muscles to use oxygen better.
Researchers sometimes call these short bouts "exercise snacks": brief bursts of effort scattered through the day. Because each climb is over quickly, it rarely feels like a workout. That is a big part of why it is easy to keep doing.
What the research found
The best evidence comes from small trials with inactive young adults. They tested different doses, and all of them raised fitness, measured as the most oxygen the body could use during hard exercise.
| Study | Dose | Change in fitness |
|---|---|---|
| Boreham, 2005 | Building to 6 climbs a day, 5 days a week, 8 weeks | About 17% higher |
| Allison, 2017 | Three 20-second stair sprints, 3 days a week, 6 weeks | About 12% higher |
| Jenkins, 2019 | Three brisk 3-flight climbs a day, 3 days a week, 6 weeks | About 5% higher |
In the 2005 study, the women's LDL cholesterol, the kind linked to heart disease, also fell by a modest amount. Looking further back, a long-running study of Harvard alumni found that men who were more active, counting stairs climbed alongside walking and sport, tended to live longer. That study shows a link, and it cannot prove the stairs themselves made the difference.
The limit is worth saying plainly. These trials were small, lasted a few weeks, and mostly involved young people who started out inactive. If you already exercise, a few flights will likely change your fitness less, and long-term effects of stair climbing alone haven't been tested in large trials.
Making it stick
The easiest moment is arrival: you walk into the building, and you turn toward the stairwell before the elevator is even an option. Every workday is fine for most people, since the climbs are short and the studies used three to five days a week. If your office is high up, ride part of the way. On the tenth floor, for example, get off at the seventh and walk the last three. Going down is optional, and the elevator will still be there on the day you carry a box of printer paper.
On a tired or rushed day, climb a single flight and ride the rest, so the habit keeps its place in your morning. When you take the stairs by default, the decision stops being a decision, and you become someone who uses the stairs without thinking about it. If climbing causes chest pain, unusual breathlessness, dizziness or knee pain that lingers, stop and see a doctor before carrying on. Which door in your building will you walk through tomorrow morning to reach the stairs?
Action steps
- 1Find your stairwell today. Walk to it once before tomorrow, so you know where the door is and which floors it opens onto.
- 2Climb 3 flights when you arrive. Each workday morning, go up 3 flights at a pace that leaves you breathing harder but still able to say a short sentence, and ride the elevator for any floors beyond that.
- 3Shrink it on a bad day. If you are tired, unwell or carrying something heavy, climb one flight and take the elevator the rest of the way.
Suggested routines
- Sitting too much
Walk 8,000 steps every day
More daily steps are linked to a lower risk of early death, with benefits levelling off around 8,000 steps.
- Falls in older age
Stand on one leg for a minute while you brush your teeth
Balance and strength exercise programs reduce falls by about 24% in older adults living at home.
- No time to exercise
Do three one-minute bursts of vigorous movement a day
For adults who don't exercise, three 1 to 2 minute bursts of vigorous activity a day are linked to a 38% to 40% lower risk of early death.
References
- Boreham, C. A. G., et al. (2005). Training effects of short bouts of stair climbing on cardiorespiratory fitness, blood lipids, and homocysteine in sedentary young women. British Journal of Sports Medicine, 39(9), 590-593. doi.org/10.1136/bjsm.2002.001131
- Allison, M. K., et al. (2017). Brief intense stair climbing improves cardiorespiratory fitness. Medicine & Science in Sports & Exercise, 49(2), 298-307. doi.org/10.1249/MSS.0000000000001188
- Jenkins, E. M., et al. (2019). Do stair climbing exercise "snacks" improve cardiorespiratory fitness? Applied Physiology, Nutrition, and Metabolism, 44(6), 681-684. doi.org/10.1139/apnm-2018-0675
- Paffenbarger, R. S., et al. (1986). Physical activity, all-cause mortality, and longevity of college alumni. New England Journal of Medicine, 314(10), 605-613. doi.org/10.1056/NEJM198603063141003