The 4 breathing secrets that will transform your health today | James Nestor
ZOE Science & Nutrition
Asthma, Overbreathing and CO2 Tolerance
James links asthma and panic to chronic over-breathing and low CO2 tolerance, noting breathing retraining benefits.
Most of us never question how we breathe. Yet many of us over-breathe or mouth-breathe without realising it. In this episode, investigative journalist and international bestselling author James Nestor shares four breathing techniques to retrain your nervous system and support better health.
This episode is for anyone who feels stressed, snores, wakes up tired, or wants a simple way to improve their health. James, who has spent over a decade researching breathing science with leading respiratory experts, guides us through daily breathing habits to help calm your body, improve oxygen efficiency, and support long-term wellbeing. We explore why nasal breathing is more efficient, how slow breathing can influence the nervous system, and how modern lifestyles may have reshaped our airways.
If breathing is something you do 20,000 times a day, what might change if you retrained it?
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Timecodes
00:00 Intro
04:15 The change that fixed my sleep and energy
09:55 Could your headaches start with your breath?
11:40 Are you telling your brain you’re stressed?
15:25 Is this the junk food of breathing?
17:30 Snoring isn’t just annoying
19:35 Can you strengthen your airway?
23:35 The moment modern food changed our faces
27:10 How early habits shape how you breathe for life
28:10 Why your nose is more powerful than you think
30:20 Why slower breathing gives you more oxygen
32:35 The molecule you activate just by using your nose
35:20 The 10-day mouth breathing experiment
37:05 One night of mouth breathing changed everything
39:15 The surprising asthma connection
42:35 The fix is boring — and that’s the point
43:00 The one rule that changes everything
44:45 The truth about mouth taping
47:05 The safe way to try mouth tape
48:05 The five-minute breathing reset
49:25 Can you calm your nervous system in 20 seconds?
52:30 How fast will you feel a difference?
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Mentioned in today's episode
- Breath Reset: Free guided audio tracks from James Nestor
- Breath: Improve your health and wellbeing by discovering the lost art of breathing by James Nestor
- Asthma & anxiety, Biological Psychology (2022)
- Different breathing techniques in the management of asthma, Thorax (2006)
- 61% Self-Identify as Mouth Breathers, Sleep Review (2015)
Have feedback or a topic you'd like us to cover? Let us know here.
Episode transcripts are available here.
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