COPD (Chronic Obstructive Pulmonary Disease)
COPD stands for chronic obstructive pulmonary disease. It is classified as a respiratory condition and is considered here as a clinical condition rather than an intervention or treatment.
Start with the full name and respiratory classification for COPD.
This list shows research findings, not treatments. Nothing here replaces medical care. If you have this condition, talk to a doctor.
What may help
What studies found for each option, best evidence first.
15 options:2 good evidence5 some evidence5 not enough evidence3 not tested in people
High-Intensity Interval Training (HIIT)practiceGood evidence it helpsSize of effect: Not known
Good human studies found a benefit, and they mostly agree. This is about what studies measured, not a cure.
All 5 studies with a clear result found a benefit.
A pooled analysis of randomized and non-randomized human studies reported better exercise capacity with AHIIT among 188 participants with respiratory conditions. A separate review restricted to people with COPD examined HIIT as a training strategy for this population.
Open the High-Intensity Interval Training (HIIT) pageCardiopracticeGood evidence it helpsSize of effect: Not known
Good human studies found a benefit, and they mostly agree. This is about what studies measured, not a cure.
All 3 studies with a clear result found a benefit.
Pooled analyses of randomized trials in people with stable COPD reported improvements in quality of life and dyspnea. A separate pooled analysis whose designs were not recorded found improvements in dyspnoea, lower limb fatigue, heart rate, and TUG performance, with high adherence (75-100%) and minimal mild adverse events.
Open the Cardio pageBreathworkpracticeSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
All 19 studies with a clear result found a benefit.
Pooled analyses of randomized trials in people with COPD reported improvements in pulmonary function and respiratory muscle strength, with further benefits in exercise capacity, dyspnea and quality of life.
Open the Breathwork pageStrength TrainingpracticeSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
All 3 studies with a clear result found a benefit.
A review reported that strength training improved exercise capacity, quality of life, and muscle strength in people with COPD. A separate pooled analysis included outcomes such as sit-to-stand and grip strength from studies targeting cardiopulmonary populations, including people with COPD GOLD II-IV.
Open the Strength Training pageQigongpracticeSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
All 11 studies with a clear result found a benefit.
Pooled randomized trials reported improvements in lung function, exercise capacity, and quality of life in people with COPD. A later analysis also found improvements in %PredFEV1 and 6MWT, but results varied considerably between trials.
Open the Qigong pageTai ChipracticeSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
All 5 studies with a clear result found a benefit.
In stable COPD, a pooled analysis of randomized trials found lower SGRQ and CAT scores compared with usual care, but no statistically distinguishable change in 6MWD or FEV1. Another pooled analysis reported improvements in lung-function and walking measures in its Tai Chi subgroup, but described the subgroup evidence as exploratory.
Open the Tai Chi pageYogapracticeSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
All 4 studies with a clear result found a benefit.
In people with stable COPD, a pooled analysis of randomized trials reported benefits for 6MWD, FEV1, and FVC compared with usual care, but the authors noted that the evidence was indirect and few trials included Yoga. Two included trials reported improved FVC, FEV1, and quality of life, using 60 min of Yoga for 4 weeks or 1 h twice weekly for 12 weeks.
Open the Yoga pageAcupuncturepracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit.
The trials evaluated acupuncture as an addition to usual treatment in patients with AECOPD; the reported finding does not specify treatment outcomes.
Open the Acupuncture page
May not suit people with this condition
Supplements and practices linked to problems for people with this condition.
Ozone TherapypracticeUnclear
Inhaled ozone may aggravate airway inflammation, oxidative lung injury, and gas-exchange impairment in COPD; inhalational exposure should be avoided.
Open the Ozone Therapy pageEar CandlingpracticeUnclear
Candle smoke may worsen airway irritation and respiratory symptoms in people with COPD.
Open the Ear Candling pageIce Bath / Cold PlungepracticeUnclear
The concern described is that cold air can trigger airway narrowing and increase airway resistance, worsening COPD.
Open the Ice Bath / Cold Plunge page
The expert view shows every study, dose protocol and source.
What may help
Interventions recorded as helping with this condition15 listedHighest probability, strongest evidence
- →PracticesHigh-Intensity Interval Training (HIIT)CertaintyHighSourceMeta-analysis
A pooled analysis of randomized and non-randomized human studies reported better exercise capacity with AHIIT among 188 participants with respiratory conditions. A separate review restricted to people with COPD examined HIIT as a training strategy for this population.
Who was studied
- Healthy people and patients
- Asthma
- Cancer
- Copd
- Coronary Artery Disease
- Diabetes Type2
- Dyslipidemia
- +11 more
Open High-Intensity Interval Training (HIIT)Study result
Included 188 participants with respiratory conditions; AHIIT showed beneficial effects on exercise capacity.
- →PracticesCardioCertaintyHighSourceRCT
Pooled analyses of randomized trials in people with stable COPD reported improvements in quality of life and dyspnea. A separate pooled analysis whose designs were not recorded found improvements in dyspnoea, lower limb fatigue, heart rate, and TUG performance, with high adherence (75-100%) and minimal mild adverse events.
Who was studied
- People with a condition
- Copd
Open CardioStudy result
Pooled SGRQ (quality of life) and mMRC (dyspnea) improved significantly in patients with stable COPD across 9 RCTs.
Medium probability(5)
- →PracticesBreathworkCertaintyMediumSourceMeta-analysis
Pooled analyses of randomized trials in people with COPD reported improvements in pulmonary function and respiratory muscle strength, with further benefits in exercise capacity, dyspnea and quality of life.
Who was studied
- Healthy people and patients
- Asthma
- Cancer
- Copd
- Depression
- Heart Disease
- Hypertension
Open BreathworkStudy result
Pooled RCTs in COPD patients; the authors conclude that breathing exercises confer benefits in these patients across several outcomes.
- →PracticesStrength TrainingCertaintyMediumSourceMeta-analysis
A review reported that strength training improved exercise capacity, quality of life, and muscle strength in people with COPD. A separate pooled analysis included outcomes such as sit-to-stand and grip strength from studies targeting cardiopulmonary populations, including people with COPD GOLD II-IV.
Who was studied
- People with a condition
- Copd
Open Strength TrainingStudy result
Four studies targeted cardiopulmonary populations (e.g., COPD GOLD II-IV, CHD, cardiac rehab) with outcomes such as sit-to-stand and grip strength included in the meta-analysis.
- →PracticesQigongCertaintyMediumSourceRCT
Pooled randomized trials reported improvements in lung function, exercise capacity, and quality of life in people with COPD. A later analysis also found improvements in %PredFEV1 and 6MWT, but results varied considerably between trials.
Who was studied
- Healthy people and patients
- Atrial Fibrillation
- Burnout
- Cancer
- Cardiovascular Disease
- Cervical Pain
- Copd
- +9 more
Open QigongStudy result
Meta-analysis of 10 RCTs showing significant improvements in lung function, exercise capacity, and quality of life.
- →PracticesTai ChiCertaintyMediumSourceRCT
In stable COPD, a pooled analysis of randomized trials found lower SGRQ and CAT scores compared with usual care, but no statistically distinguishable change in 6MWD or FEV1. Another pooled analysis reported improvements in lung-function and walking measures in its Tai Chi subgroup, but described the subgroup evidence as exploratory.
Who was studied
- People with a condition
- Copd
Open Tai ChiStudy result
Tai Chi versus usual care significantly reduced SGRQ and CAT scores in stable COPD in the network meta-analysis. Tai Chi did not produce statistically distinguishable change in 6MWD or FEV1.
- →PracticesYogaCertaintyMediumSourceRCT
In people with stable COPD, a pooled analysis of randomized trials reported benefits for 6MWD, FEV1, and FVC compared with usual care, but the authors noted that the evidence was indirect and few trials included Yoga. Two included trials reported improved FVC, FEV1, and quality of life, using 60 min of Yoga for 4 weeks or 1 h twice weekly for 12 weeks.
Who was studied
- People with a condition
- Asthma
- Copd
- Coronary Artery Disease
- Elderly
- Frailty
- Hypertension
Open YogaStudy result
Network meta-analysis of 47 RCTs in stable COPD patients; yoga showed benefit on 6MWD, FEV1 and FVC versus usual care, with the authors noting indirect evidence and few yoga-containing trials.
Low probability(8)
- →PracticesAcupunctureCertaintyLowSourceRCT
The trials evaluated acupuncture as an addition to usual treatment in patients with AECOPD; the reported finding does not specify treatment outcomes.
Who was studied
- People with a condition
- Copd
Open AcupunctureStudy result
All included trials enrolled patients with AECOPD; acupuncture was evaluated as adjunct to usual treatment in this population.
- →PracticesMindfulness MeditationCertaintyLowSourceRCT
A review focused mostly on COPD reported improvements in anxiety, depression, stress, dyspnea, and HRQoL across RCTs and observational studies.
Who was studied
- People with a condition
- Copd
Open Mindfulness MeditationStudy result
Most included studies focused on COPD; significant improvements in anxiety, depression, stress, dyspnea, and HRQoL reported across RCTs and observational studies.
- →PracticesBrisk WalkingCertaintyLowSourceClinical
In a quasi-experimental study of 14 people with COPD, intermittent shuttle walking allowed participants to walk farther and experience fewer symptoms than continuous walking. A 6-week pulmonary rehabilitation pilot with activity-monitor support also reported increased exercise participation and improved symptom burden.
Who was studied
- People with a condition
- Copd
Open Brisk WalkingStudy result
Intermittent shuttle walking allowed greater walking distance and lower symptoms compared to continuous walking in COPD patients, suggesting it is a beneficial training modality for pulmonary rehabilitation.
- →PracticesCyclingCertaintyLowSourceClinical
In an RCT involving 44 people with COPD, 9-week eccentric cycling improved 6MWD (+64.2 m ECT, +69.3 m ECT-HV), EEI, and TUG (−1.71 to −1.9 s) versus control, but did not improve VO2peak. A randomized crossover trial in 17 people with COPD found lower V˙O2 and V˙E during eccentric than concentric cycling at identical submaximal workloads.
Who was studied
- Healthy people and patients
Open CyclingStudy result
9-week eccentric cycling training improved 6MWD (+64.2 m ECT, +69.3 m ECT-HV), EEI, and TUG (−1.71 to −1.9 s) vs control, exceeding MCIDs, without improving VO2peak; authors conclude ECT is a promising rehabilitation modality for patients with chronic respiratory disease.
- →PracticesHatha YogaCertaintyLowSourceClinical
A 2017 trial in 36 outpatients with obstructive pulmonary disease evaluated functional capacity and quality of life. In 2018 interviews, 15 participants with COPD described perceived improvements in symptoms and breathing control after yoga.
Who was studied
- People with a condition
- Asthma
- Copd
Open Hatha YogaStudy result
Study population of outpatients with obstructive pulmonary disease in which hatha yoga was evaluated for functional capacity and quality of life.
- →PracticesDanceCertaintyLowSourceTheoretical
Dance-based exercise may improve exercise capacity and quality of life in people with stable COPD.
Open DanceStudy result
Dance-based exercise can improve exercise capacity and quality of life in stable COPD patients.
- →PracticesPilatesCertaintyLowSourceTheoretical
Expert knowledge proposes that Pilates may improve exercise tolerance, dyspnoea, and functional capacity in people with COPD.
Open PilatesStudy result
Pilates improves exercise tolerance, dyspnoea, and functional capacity in individuals with chronic obstructive pulmonary disease.
- →PracticesSwimmingCertaintyLowSourceTheoretical
Swimming may improve exercise capacity and quality of life for people with COPD, particularly when breathlessness or joint pain limits land-based exercise.
Open SwimmingStudy result
Swimming may improve exercise capacity and quality of life in COPD patients, particularly when land-based exercise is limited by dyspnea or joint pain.
What to avoid
Interventions recorded as making it worse3 listedHighest probability
- →PracticesOzone TherapyCertaintyLowSourceReference knowledge
Inhaled ozone may aggravate airway inflammation, oxidative lung injury, and gas-exchange impairment in COPD; inhalational exposure should be avoided.
Open Ozone TherapyRationale
Inhaled ozone can aggravate airway inflammation, oxidative lung injury, and gas-exchange impairment in COPD; inhalational exposure should be avoided.
- →PracticesEar CandlingCertaintyLowSourceTheoretical
Candle smoke may worsen airway irritation and respiratory symptoms in people with COPD.
- →PracticesIce Bath / Cold PlungeCertaintyLowSourceTheoretical
The concern described is that cold air can trigger airway narrowing and increase airway resistance, worsening COPD.
Open Ice Bath / Cold PlungeRationale
Cold air triggers bronchospasm and increases airway resistance, worsening COPD.
How to read the evidence
Evidence tier — overall strength of the evidence for the whole compound
- StrongWell established — backed by strong, consistent human research.
- ModerateSome genuine support, but mostly from small or lower-quality studies. Promising, not proven.
- PreliminaryEarly-stage evidence — a promising hypothesis, not an established effect yet.
- LimitedVery limited evidence — treat this as a hypothesis, not proof.
- InsufficientNot enough good evidence to draw conclusions yet.
Certainty — how sure we can be that the effect is real
- Very highVery sure — strong, consistent evidence
- HighFairly sure — consistent evidence from good studies
- MediumModerately sure — new studies could change this
- LowNot sure — little or mixed evidence
- Very lowVery unsure — almost no usable evidence
Source — where the data comes from
- Meta-analysisPooled analysis of many trials — the strongest evidence
- RCTRandomized controlled trial — a strong human study design
- ClinicalA human clinical study
- Reference knowledgeFrom general health-science or pharmacology references, not a study of this exact claim
- Animal researchStudied in animals, not humans
- Community reportsAggregated user reports — anecdotal signal, not evidence
- TheoreticalMechanism-based reasoning, not yet tested
Study grade — quality of each underlying study (A best, D weakest)
- AHigh-quality — strong, consistent human trials
- BGood — solid evidence with some limitations
- CModerate — limited, small, or mixed-quality studies
- DWeak — preliminary, indirect, or animal-only
Confidence — how strongly the sources back a finding
A 0–100 score from study quality and agreement
Most supplement evidence is graded C–D. Read it as preliminary signal, not proof.
Full write-up
What is it
COPD stands for chronic obstructive pulmonary disease. It is classified as a respiratory condition and is considered here as a clinical condition rather than an intervention or treatment. Options studied in relation to COPD include Tai Chi and Cordyceps. This information is educational; people with a medical condition should consult a clinician.
Evidence-backed options
For COPD, Tai Chi has been studied as an addition to usual care. Findings from a randomized trial indicate fewer acute exacerbations, a longer interval before a second exacerbation, and improvements in health-related quality of life and mood-related scores compared with usual care alone. Lung function did not improve in that study, so the reported benefits do not extend uniformly across all COPD outcomes.
Cordyceps has been reviewed in people with GOLD stage 2 to 3 COPD. The review describes possible benefits for exercise tolerance and quality of life, with a potential effect on lung function. This conclusion is more limited, and the evidence does not establish the same level of support as the findings for Tai Chi. The available summaries do not specify enough about dose, duration, or how quickly effects appeared to draw firm conclusions about those aspects. These options are educational reference points rather than treatment instructions; anyone considering them for COPD should discuss the decision with a clinician.
What to avoid
For COPD, the clearest concern is inhalational exposure. Ozone Therapy is flagged because inhaled ozone can aggravate airway inflammation, cause oxidative lung injury, and impair gas exchange. Ear Candling may also be problematic because candle smoke can worsen airway irritation and respiratory symptoms. These concerns relate to exposing already vulnerable airways to irritants or potentially damaging substances.
Cigarette Smoking is a major concern because it is the primary cause of COPD. Continued smoking accelerates lung function decline, increases exacerbations, and worsens mortality, making it particularly important in the context of this condition.
Bacopa Monnieri is flagged for a different potential respiratory effect. Increases in bronchial secretions and cholinergic tone may worsen airflow limitation or interfere with secretion clearance in people with COPD.
Ice Bath / Cold Plunge is flagged for review, but no mechanism is recorded for this contraindication, so it is not presented as a verified restriction. Because COPD can involve clinically important breathing limitations, any medical condition or potentially inhaled exposure should be discussed with a clinician.