How to use your breath to sleep better, stress less and live longer | James Nestor
The Doctor's Kitchen Podcast
Dr Rupy Aujla
4.7 • 2.7K Ratings
🗓️ 11 March 2026
⏱️ 86 minutes
🧾️ Download transcript
Summary
We breathe over 20,000 times a day. Those breaths do far more than just keep us alive. They shape your sleep, your focus, your energy, even your blood pressure and long-term risk of disease.
That’s over 20,000 opportunities to support your health, every single day.
The challenge is that modern life makes it harder to breathe well. We sit hunched over laptops, we’re constantly switched on, we chew softer foods, and many of us mouth-breathe, especially at night.
My guest today is on a mission to improve our health through our breath.
James Nestor is an award-winning science journalist and author of the bestseller “Breath”. He’s travelled the world to understand how our breathing has changed, and most importantly, what simple, practical steps we can take to improve it.
This episode genuinely shifted things for my team and me. I hope it inspires you to make a few small changes too. And if you know a committed mouth breather, send it their way.
We cover:
- The risks of mouth breathing and James’ 10-day experiment
- Why nasal breathing makes such a difference
- Tips for a blocked nose or deviated septum
- How to train your diaphragm for easier breathing
- Why softer modern diets can affect your airways
- Whether “mewing” is worth trying
- Easy breathing habits you can start today
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Transcript
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| 0:00.0 | Doctors' Kitchen |
| 0:01.1 | Recipes, Health, Lifestyle |
| 0:04.6 | Focusing on this one thing we all do around 25,000 times a day |
| 0:14.8 | can noticeably improve your sleep, energy, focus and even your risk of high blood pressure and disease. |
| 0:23.2 | Breathing. |
| 0:24.3 | But our modern world has made it harder than ever to breathe properly. |
| 0:29.6 | Today, I'm joined by James Nestor, award-winning science journalist and author of the |
| 0:35.8 | international bestseller, Breath. |
| 0:38.6 | He's traveled the world to find out what went wrong in our evolution of breathing and how |
| 0:45.4 | to fix it. We get into nasal breathing, powerful practices like humming and breath holds, |
| 0:51.8 | and how to use your diaphragm properly and even how modern ultra soft diets |
| 0:57.6 | affect our airway development and the way we breathe by the end of this episode you'll know |
| 1:04.2 | exactly what to change and where to start to improve your health through your breath. |
| 1:20.6 | James, why do you believe we've lost the ability to breathe properly? |
| 1:23.8 | And what are the downstream consequences of that? |
| 1:29.8 | I never thought that I would be writing a book about how we were breathing improperly, |
| 1:35.0 | and that was never my intention when I set out to write this book. But it wasn't until I spoke to so many researchers, and especially biologists and people that study evolution, that I realized |
| 1:41.6 | that our skulls have fundamentally changed. Our mouths are so small. |
| 1:46.0 | Our teeth don't fit. |
| 1:47.0 | That's why we have crooked teeth. |
| 1:48.0 | With a small mouth, you have a smaller airway. |
| 1:50.0 | So all of these changes have occurred in the past, |
... |
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