Can breathing exercises help with asthma?
They can help with how asthma feels day to day. In the largest trial, people with asthma who learned breathing retraining reported better quality of life a year later, and their lung function did not change. That is the whole honest summary: breathing exercises may make the days better; they do not open the airways, and they never replace the inhaler. On a calm day, the gentle pattern above, nasal and with no holds, is the kind the trials used.
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Asthma is a disease of the airways: inflammation and narrowing that medicines treat. Many people with asthma also breathe in a way that makes the symptoms feel worse than the airways alone would explain: fast, through the mouth, high in the chest, with a tendency to over-breathe when anxious. Breathing retraining is aimed at that second thing. It teaches slow, nasal, low breathing as a habit, and in the trials it was that habit, rather than any single session, that made the difference people reported.
This page is written for someone who already has a diagnosis, a doctor and an inhaler, and wants to know whether a paced timer is worth adding. The short answer is that it may help you feel better and it will not change the medicine you need. If you do not yet have a diagnosis and you are wheezing or short of breath, a breathing timer is the wrong page; a doctor is the right one.
How to use the timer on a calm day
Only when the airways are open and breathing is easy. Never during symptoms.
- Have your reliever within reach. Not because the pattern is dangerous, but because the habit of knowing where it is belongs to every calm day as much as to a bad one.
- Sit upright. Shoulders down, one hand low on the belly. Slumping narrows the space the diaphragm has to work in.
- Mouth closed, nose open. Everything on this page goes through the nose. If your nose is blocked, do something else today; mouth breathing is what the retraining is trying to undo.
- Breathe out first, softly, without pushing the air.
- Press Begin: in for four, out for six, small breaths. The belly rises on the inhale and falls on the exhale. The exhale is a release, not a squeeze. A forced exhale is one of the things that can tighten airways; let the air leave on its own.
- If you feel any tightness, stop. Breathe normally, and if it does not pass, use your reliever as your plan says. A paced session is never worth pushing through a symptom.
- Five minutes, then notice your ordinary breathing. The point of the trials was the breathing between sessions. If the next hour is slower and more nasal than it would have been, the session did its job.
Patterns to avoid with asthma
Most of the timers on this site are fine on a calm day. A few are not the right tools, and one should be skipped.
Breath-holds. The 4-7-8, box and triangle pages each list respiratory conditions in their caution box for a reason: a long hold with narrowed airways is uncomfortable at best, and the strain of a hold is the part most likely to provoke a cough. If you use them at all, keep the holds short and the breaths small, and talk to your doctor first.
Fast breathing. The energizing breath is deliberate fast breathing, and its page says to skip it with any respiratory condition. Skip it.
Big, forced exhales. Any instruction to "push all the air out" is one to ignore. The exhale in asthma is the harder half of the breath, and forcing it is a known way to make it harder.
What is left is slow, nasal, small, no holds: the extended exhale on this page and the five-five pattern. Those are the two to use.
Anxiety, asthma, or both
A tight chest and a feeling of not getting enough air are symptoms of asthma and also symptoms of anxiety, and many people have both. The difference matters because the responses are different. Airways that are narrowing need the reliever and the action plan. A breathing pattern that has run away with itself, with tingling fingers and a racing heart and no wheeze, usually settles with slow breathing and often gets worse with a reliever taken for no reason.
If you cannot tell, treat it as asthma: use the reliever as your plan says, and if the inhaler does not help within the time your plan gives, get help. Then, on a calm day, talk to your doctor about the pattern. Breathing retraining in the trials was partly about this: learning the difference between an airway that is narrowing and a breath that has sped up, and having something to do about the second one.
Before you start
Read this one even if you skip the others.
- Keep every medicine your doctor has prescribed and use the reliever exactly as your asthma action plan says. Nothing on this page changes that.
- Never use a breathing timer during an attack, during a flare-up, or when you are wheezing or short of breath. That is reliever time, and emergency time if the reliever does not work.
- Stop any session at the first sign of tightness, cough or wheeze.
- No breath-holds and no fast breathing without your doctor's say-so. Skip the energizing breath entirely.
- Tell your doctor or asthma nurse that you are trying breathing retraining. If a physiotherapy service is available where you live, that is where the trials' version of it comes from.
Nothing here treats asthma, opens airways, reduces inflammation or replaces any medicine. It is a gentle way to breathe on a calm day, and the trials suggest it may make the days feel better.
What the evidence shows
The asthma evidence is better than for most things on this site, and it points in one direction with one large caveat.
The 2020 Cochrane review Breathing exercises for adults with asthma pooled "22 studies involving 2880 participants", using yoga breathing, breathing retraining, the Buteyko and Papworth methods and diaphragmatic breathing. For quality of life, "meta-analysis showed improvement favouring the breathing exercises group at three months (MD 0.42, 95% CI 0.17 to 0.68; 4 studies, 974 participants; moderate-certainty evidence)". For asthma symptoms on the control questionnaire the result "was inconclusive", and for lung function measured as FEV1 the pooled result was likewise "inconclusive" with "very low-certainty evidence". The authors conclude that "Breathing exercises may have some positive effects on quality of life, hyperventilation symptoms, and lung function", with certainty that "ranged from moderate to very low".
The single largest trial is the BREATHE study, published in 2018 in The Lancet Respiratory Medicine by Bruton and colleagues. From UK general practices, "655 were recruited into the study" and assigned to a self-guided DVD and booklet, three face-to-face physiotherapy sessions, or usual care. At twelve months, quality-of-life scores "were significantly higher in the DVDB group (mean 5·40, SD 1·14) than in the usual care group (5·12, SD 1·17; adjusted mean difference 0·28, 95% CI 0·11 to 0·44)", the DVD did as well as the physiotherapist, and "There were no significant differences between the randomisation groups in FEV1 or fraction of exhaled nitric oxide." The authors' own interpretation is the sentence this page is built on: "Breathing retraining programmes improve quality of life in patients with incompletely controlled asthma despite having little effect on lung function or airway inflammation."
Two honest footnotes. A 0.28-point change on a seven-point questionnaire is real and modest; the usual threshold for a difference a patient notices is 0.5. And neither the review nor the trial tested a five-minute timer session; they taught a way of breathing to use all day over months. The timer on this page is a way to practise that pattern, not the intervention the trials studied.
Common questions
Can breathing exercises replace my inhaler?
No. In the largest trial, breathing retraining improved how people felt about their asthma and did nothing to their lung function or airway inflammation, which are what the medicines act on. Keep every medicine your doctor prescribed, use the reliever as instructed, and treat breathing as something you do on top.
Should I use a breathing timer during an asthma attack?
No. During an attack the plan is your reliever inhaler and your written asthma action plan, and emergency help if it is not working. A paced timer is for calm days, when the airways are open and the breathing is easy.
Which pattern is safest with asthma?
A slow, nasal pattern with no holds and small breaths: in for four, out for six. Breath-holds, fast breathing and big forced exhalations are the things to avoid; several of them are listed as cautions on their own pages, and the energizing breath should be skipped entirely.
What did the trials actually find?
Better quality of life. The 655-patient BREATHE trial found a modest improvement on the asthma quality-of-life questionnaire at a year, from a DVD and booklet as much as from face-to-face sessions, and no difference in lung function. A Cochrane review of 22 trials reached the same shape of conclusion with moderate to very low certainty.
Is this the Buteyko method?
No. Buteyko is one named method among several that the trials tested; the review grouped yoga breathing, breathing retraining, Buteyko, Papworth and diaphragmatic breathing together. The pattern on this page is the plainest of them: slow, nasal, no holds. It makes no claim beyond what the trials found for the group.
How often should I do it?
The trials taught people a way of breathing to use through the day over months, not a timer session. If you want to try a session, five minutes on a calm day, a few times a week, is a reasonable start, and the thing to notice is whether your breathing between sessions is slower and more nasal, not whether the five minutes felt good.
A note on what this is
Nothing on this page is medical care, and none of it replaces treatment, an inhaler, an action plan or a conversation with your doctor. Read the medical disclaimer. Asthma that is not well controlled is a reason to see your doctor or asthma nurse, not a reason to breathe differently on your own.