Most breathlessness isn't about lung capacity — it's about pattern. This episode walks through the clinical evidence on dysfunctional breathing: what it is, why it's especially common after COVID, and what the research actually supports for fixing it.

AI-generated (NotebookLM) audio overview. Source: HexLocal in-house research — Clinical Protocols to Fix Dysfunctional Breathing (Dr. Priya Nair). Primary external sources include Thomas et al. (Thorax 2003), Holloway & West (Thorax 2007), Shaffer & Meehan (Frontiers in Neuroscience 2020), and the ERS review on dysfunctional breathing after COVID-19 (2024).

- Breathing retraining reliably improves symptoms and quality of life — but doesn't change lung capacity, which matters for setting realistic expectations

- The validated core of retraining is captured in three principles: nose, low, slow — nasal breathing, diaphragmatic movement, and 8–12 breaths per minute at rest

- Dysfunctional breathing was found in roughly 88% of long-COVID patients with unexplained breathlessness, making it one of the most under-recognised drivers of persistent symptoms

- Slow breathing at around 6 breaths per minute hits the cardiovascular system's resonance frequency, producing measurable gains in HRV and vagal tone via the baroreflex

- Finding your individual resonance frequency requires real-time HRV feedback — without equipment, 6 breaths per minute is the evidence-supported default

- Not all breathwork carries the same safety profile; the episode covers which populations should get medical clearance before starting any protocol