Assess your baseline breathing pattern
Observe your resting breathing for one minute to diagnose chronic over-breathing before you try to fix it.
Why it works
Most people are unaware they are chronic over-breathers — they breathe 12-20 times per minute at rest when 6-8 is physiologically optimal. Observation makes the invisible visible: mouth breathing, visible upper-chest movement, frequent sighs, and audible breath at rest are the four main markers. You cannot correct a pattern you cannot perceive.
How to do it
- Sit quietly for 5 minutes without doing anything deliberately. Then observe: are you breathing through the nose or mouth?
- Place one hand on the chest and one on the belly — which moves more with each breath?
- Count breaths per minute; note any sighs, yawns, or mouth breathing.
- Score yourself: nasal + belly-led + under 10 breaths/min + no audible breath = functional baseline.
Evidence
Chronic mild hyperventilation (dysfunctional breathing) is documented in clinical literature as common and associated with impaired athletic recovery, anxiety, and reduced exercise economy. Assessment is standard in respiratory physiotherapy. (clinical)
Self-assessment of breathing pattern is moderately reliable; formal assessment by a respiratory physiotherapist provides a more accurate baseline.
Common mistake
Assessing breathing while paying attention to it — which immediately normalises the rate. Observe before you decide to observe, or use a brief video recording.
Practice this with IX Coach
7 days free, then $40/month (~$1.30/day).
More practices for The Oxygen Advantage, Made Practical
- Breath-hold walk — simulate altitude during exercise
Hold your breath after an exhale while walking to build CO2 tolerance and trigger mild hypoxic adaptation.
- Recover through the nose after exercise
Close your mouth within 30 seconds of stopping exercise — however uncomfortable — to accelerate HRV recovery.
- Advanced breath holds — MHT (max hold training)
Build CO2 and O2 tolerance with progressive maximum breath holds — used by elite freedivers and now applied to sport.
- Simulated altitude breathing drills before training
A 10-minute pre-workout hypoxic breathing sequence primes the oxygen-delivery system before exercise begins.
- Light, slow, deep breathing at rest
Breathe less air than you need — lighter, slower, deeper — to recalibrate the resting CO2 set point.
Related concepts
- Nasal Breathing for Performance
The physiology behind nasal breathing and how to retrain the habit
- Box Breathing, Made Practical
The equal-count breathing pattern, its physiology, and how to use it under real pressure
- Coherent Breathing, Made Practical
The five-breaths-per-minute method, why coherence matters, and how to build a daily practice