What Clinical Guidelines Say About Breathing Exercises

Summary table

1. Asthma (UK)

   NICE/BTS/SIGN asthma guideline (NG245): we found no recommendation on breathing exercises in the text we read

   What we could not read: GINA and the BTS/SIGN full guideline text

2. COPD (UK)

   NICE lists advising on relaxation techniques within care; NHS describes breathing techniques for breathlessness

   What we could not read: GOLD report text

3. Anxiety (England)

   NICE offers CBT or applied relaxation as a high-intensity option for generalised anxiety disorder; its text does not mention breathing exercises

   What we could not read: Guidance from other countries

4. High blood pressure (England)

   NICE removed its relaxation therapies recommendation for lack of evidence

   What we could not read: US guideline text (AHA/ACC page blocked)

Asthma

The NICE/BTS/SIGN asthma guideline (NG245) covers diagnosis, monitoring and chronic asthma management, and is the main guidance for the UK. [1] In the text we read, the words "breathing exercise", "breathing retraining" and "Buteyko" did not appear. That is a finding about this document only: proper evidence not found here for a recommendation. We also searched for the Global Initiative for Asthma (GINA) report and the British asthma guideline. We downloaded GINA's PDF but could not extract its text with the tools available, so we do not report what it says.

What the research shows is on separate pages. A Cochrane review of 22 studies found better asthma quality of life at three months with breathing exercises (moderate certainty), but inconclusive results for asthma symptoms and for FEV1 (a lung measure) at up to three months, with overall certainty from moderate to very low. [2] See breathing exercises for asthma. An HRV biofeedback trial concluded biofeedback should not be considered an alternative to controller medicines. [3]

COPD and breathlessness

NICE's COPD guideline (NG115) lists advising people on relaxation techniques, and identifying and managing anxiety and depression, among the elements of care alongside pulmonary rehabilitation. [4] In the NICE text we read, "breathing control" and "pursed lip" did not appear.

The NHS (UK) patient page on living with COPD says various breathing techniques are helpful for some people with breathlessness. It describes breathing control as breathing gently using the least effort, with the shoulders supported, and mentions breathing through pursed lips. [5] This is patient information that tells you what a care team may teach, not a trial result. A 2024 review of 73 trials mostly in COPD or asthma found breathing exercises reduced breathlessness on one scale, though the effect did not exceed the minimal important difference, and quality of life improved consistently. [6] Learn more at breathing exercises for COPD. Sudden or severe breathlessness is a medical problem, not a time to practice; see when breathlessness needs medical care.

Anxiety

NICE's guideline for generalised anxiety disorder in England says that if a person chooses a high-intensity psychological intervention, offer either CBT or applied relaxation. [7] Applied relaxation is a named therapy; the text we read does not describe it as breathing exercises, and breathing exercises did not appear in the document. NCCIH, in the US, says relaxation techniques may reduce anxiety in people with chronic medical problems and those having medical procedures. [8] For trial findings see breathing exercises for anxiety. In a crisis, call 988 in the United States.

High blood pressure

NICE's hypertension guideline (NG136) deleted its earlier recommendation on relaxation therapies. The committee said the evidence was limited to a single small study, which was not adequate to assess effectiveness. [9] It added that it did not intend to stop people trying relaxation therapies, and that the clinical focus for non-drug treatment should be lifestyle change. [9] This statement is about relaxation therapies in general, not slow breathing specifically. Slow-breathing trials are summarized on slow breathing and blood pressure. We tried to read US hypertension guidance from the American Heart Association, but the page returned an access error, so we do not describe it.

What this means in practice

• Guidance we could read does not claim breathing exercises cure any of these conditions.
• Where guidance mentions breathing or relaxation, it is as a supportive, self-management or add-on measure.
• Absence from a guideline does not mean harm. It usually means the evidence was judged too limited.
• Your own care team knows your history. Tell them about any breathing practice; see telling your doctor about your breathwork.