The 4 breathing secrets that will transform your health today | James Nestor

ZOE Science & Nutrition

ZOE

Nutrition, Education, Science, Health & Fitness

4.6 • 5.6K Ratings

🗓️ 26 February 2026

⏱️ 59 minutes

🔗️ Recording | iTunes | RSS

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Summary

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? 🌱 Try our science-backed and tasty wholefood supplement Daily 30+ Get our brand-new app and Gut Health Test designed by world-leading gut health and nutrition scientists to build healthy eating habits 👉 Join ZOE Follow ZOE on Instagram. 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? 📚Books by our ZOE Scientists The Food For Life Cookbook Every Body Should Know This by Dr Federica Amati Food For Life by Prof. Tim Spector Ferment by Prof. Tim Spector Free resources from ZOE Eating for Better Brain Health: Your brain-gut blueprint How to eat in 2026 - Discover ZOE’s 8 nutrition principles for long-term health Live Healthier: Top 10 Tips From ZOE Science & Nutrition Gut Guide - For a Healthier Microbiome in Weeks Better Breakfast Guide 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.

Transcript

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0:00.0	Welcome to Zoe Science and Nutrition, where world-leading scientists explain how their research can improve your health.
0:07.0	The experiment was simple, but deeply uncomfortable.
0:19.0	Two healthy men deliberately interfered with the body's most basic behavior.
0:25.6	Breathing.
0:26.6	Their noses were sealed shut for 10 days.
0:30.6	They inhaled and exhaled only through their mouths, while researchers tracked markers of health.
0:36.6	The changes were dramatic. Blood pressure
0:39.3	climbed. Sleep became fragmented. Cognitive function dropped. Stress hormones surged. Within days,
0:47.3	their physiology began to resemble that of people decades older. But this wasn't an extreme stress test.
0:53.3	It closely mirrors how many people breathe
0:56.3	every night, unaware of the strain that it places on their body. In this episode, we sit down
1:04.3	with investigative journalist James Nester, author of the international bestseller, Breath, the new
1:10.1	science of a lost art.
1:11.4	He shares the science and history of breathing and how it can subtly impact your health.
1:16.8	By the end, you'll see breathing not as something automatic,
1:20.3	but as a powerful biological lever hiding in plain sight,
1:24.2	and you'll know exactly what to do to get your breathing back on track using simple exercises.
1:33.5	James, thank you so much for joining me today.
1:35.8	Thanks for having me.
1:37.1	So we like to kick off our show here at Zoe with a rapid fire Q&A with questions from our listeners.
1:43.7	Are you willing to give it a go?
1:44.9	I am. Good. And we have some very strict rules. You can say yes or no, or if you have to,
	...

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