lung capacity

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Better Under Stress, Wim Hof’s Joy, and a Protocol based on 29 Studies

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4 Thoughts



1. Micro Breathing Moments—Cliché but True

“Try stopping, sitting down, and becoming aware of your breathing once in a while throughout the day. It can be for five minutes or even 5 seconds…Then, when you're ready to move, moving in the direction your heart tells you to go mindfully and with resolution.”

- Jon Kabat-Zinn, Wherever You Go There You Are

It’s that simple. Five seconds, 5 minutes, or anywhere in between. It’s always available if you need a quick reset and recovery.

2. Perform Better Under Stress: Another Reason to Practice Slow Breathing

“HRV is also strongly associated with our ability to perform at our best during times of increased stress or challenge. In fact, HRV is one of the best metrics of psychophysiological health and ability to perform we currently have.”

- Inna Khazan, Ph.D.

Biofeedback and Mindfulness in Everyday Life

Research tells us that higher HRV is associated with better performance during stressful and challenging times <—sounds good to me 💪

And fortunately, training our HRV is as simple as doing some slow breathing for about 10-20 minutes a day (see next thought).

So let’s grab an app, set the pace to 4-6 breaths/min, and get started enhancing our “ability to perform at our best during times of increased stress,” today.

3. A Slow Breathing Protocol based on 29 Studies

Based on 29 studies, this systematic review gave the following guidelines for slow breathing and HRV biofeedback. You can apply these straightforward guidelines for slow breathing without biofeedback.

  • Best results: 4-12 supervised sessions plus daily home practice for ~20 min/day.

  • Minimum effective dose: One supervised practice followed by home practice for 10 min/day for 4 weeks.

  • During supervised practice, trainees should learn to breathe slowly without it causing stress.

  • Supervised practice should also include instructions to help people avoid overbreathing to compensate for the slower rate.

  • Use abdominal breathing with nasal inhales and pursed-lips exhales.

  • The breathing ratio should have a slightly longer exhale (I like the 40/60 approach: 40% inhaling, 60% exhaling).

Use them for yourself, your clients, or your loved ones 🙏

4. Two Paradoxical (but equally true) Breathing Statements

  1. Greater lung capacity is associated with a longer life.

  2. Taking big breaths is detrimental to your health.

Reminds me of this gem: “Almost every wise saying has an opposite one, no less wise, to balance it.” - George Santayana


1 QUOTE

“Life is absurd. But you can fill it with ideas. With enthusiasm. You can fill your life with joy.”

- Reinhold Messner

Speaking of Joy…

I wrote another guest blog for Resbiotic titled The Joy of Breathwork and 3 Super Easy Ways to Be Consistent. Enjoy the 3-minute read!

1 ANSWER

Category: Wim Hof’s Joy

Answer: Scientists hypothesize that Wim’s method activates regions of the brain that release these, partially explaining why it promotes a sense of euphoria and well-being.

…

(Cue the Jeopardy! music.)

…

Question: What are endogenous opiates/cannabinoids?

In good breath,

Nick Heath, T1D, PhD
“Breathing is the compound interest of health & wellness.”

P.S. the secret to a long marriage

 
 

* An asterisk by a quote indicates that I listened to this book on Audible. Therefore, the quotation might not be correct, but is my best attempt at reproducing the punctuation based on the narrator’s pace, tone, and pauses.

Sign Up For The Breathing 411

Each Monday, I curate and synthesize information from scientific journals, books, articles, and podcasts to share 4 thoughts, 1 quote, and 1 answer (like "Jeopardy!") related to breathing. It’s a fun way to learn something new each week.

 
 

How I Trained for Altitude (it's not what you might think)

View of Mount Audubon from Mitchell Lake

View of Mount Audubon from Mitchell Lake

“Everyone has a plan 'till they get punched in the mouth.”

- Mike Tyson

I live in Florida, basically below sea level : ) So when my best friend invited me to hike up to 13,200 ft, I put a ton of pressure on myself to do it. I thought, “I’m The Breathing Diabetic. I better be able to handle some altitude.”

But I didn’t train how you might think. Of course, I initially started with more breath holds. But I realized that the issue at altitude is lower air pressure. To breathe, our lungs expand, the pressure decreases in our lungs, and air flows in from the atmosphere due to the pressure difference. However, at altitude, the lower air pressure will make that process harder.

If each breath is harder, your diaphragm and other breathing muscles will fatigue quicker, and you’ll feel out of breath. Maybe I’m wrong, but that seemed like the biggest issue when I considered everything I’ve learned.

So I decided to focus on lung capacity. With greater lung capacity, the lungs can expand more, pressure can decrease more, and breathing can be easier at altitude. Is this proven? I don’t know. But it made sense to me.

So I did a lot of Wim Hof breathing, a lot of work with the Oxygen Advantage Sports Mask, and a lot of extended exhalations. I also used ocean breathing during my morning breathing practice for added resistance.

Did it work? I’m not sure since I don’t have a control to compare against. But I made it. It was extremely challenging, and all of my plans went out the window once we hit about 11,000 ft. The winds were insane, my hands were freezing, and the continuous uphill was way more brutal than I expected.

To cope, I did some periodic breathwalking, and every few minutes, I took 10 massive Wim Hof style breaths. Going up, I was probably around 40% nasal, 60% mouth breathing (I went into it not caring which hole I used, as long as I made it). Going down was about 90% nasal and 10% mouth.

When I got to the summit, my oxygen saturation was steadily 81-85%. Crazily, my blood sugar was 404 mg/dL (!), which wasn’t helping the situation. But I made it. Mission accomplished.

If you have any thoughts about altitude or my training approach, please send me an email at nick@thebreathingdiabetic.com with the subject “High Altitude.” It was my first time, so I have no clue if what I’m saying makes sense : )

More Pictures

SpO2 was hovering around 81-85% right when we reached the summit. This was with normal nasal breathing.

SpO2 was hovering around 81-85% right when we reached the summit. This was with normal nasal breathing.

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IMG_0672.png
“Strategically” giving my diaphragm a rest before we started one of the last pushes. I wasn’t tired, just meditating 😂😂😂

“Strategically” giving my diaphragm a rest before we started one of the last pushes. I wasn’t tired, just meditating 😂😂😂

Me (left) and James (right) at the peak hiding from the insane winds. Gusts felt like they were over 60 mph.

Me (left) and James (right) at the peak hiding from the insane winds. Gusts felt like they were over 60 mph.

James taking in the view.

James taking in the view.

How To Breathe To Live Longer, plus a New Take on "Breathe Light"

 
 

Listen Instead of Reading

 

Greetings,

Here are four thoughts, one quote, and one answer for this week.

I hope you enjoy!

 
 
 
 

4 Thoughts


1. How To Breathe To Live Longer

Let’s synthesize some ideas on breathing for longevity and see how we can apply this knowledge in our own life today.

Part I: Breathe Through Your Nose

Here’s James Nestor describing how George Caitlin lived double the average life expectancy of his time:

“He credited his longevity to ‘the great secret of life’: to always breathe through the nose.” - Breath

Part II: Expand Your Lung Capacity

Next, here’s Nestor describing the Framingham Heart Study:

“They gathered two decades of data from 5,200 subjects, crunched the numbers, and discovered that the greatest indicator of life span ... was lung capacity … larger lungs equaled longer lives.” – Breath

Part III: Synthesis and Application

Part I is straightforward: breathe through your nose. But how do we expand lung capacity? Nestor provides a few different ways.

  1. Light to moderate exercise

  2. Lung expanding breathwork

  3. Long and complete exhales

Lung-expanding breathwork includes things like Wim Hof w/ “belly, chest, head,” the Yogic Complete Breath, and most breathing taught in freediving.

Long exhales also increase lung capacity by allowing “more air to get in” on the next breath. But, they have the added longevity benefit of activating the “relaxation response.”

Alright, so there we have it. To live longer, we should breathe through our noses all the time, increase our lung capacity, and practice extended exhales.

And for the ultimate expression of longevity, let’s not forget what Michael J Stephen, MD tells us in Breath Taking:

“Those of us who practice breathing exercises today may well pass on more disease resistant genes to our descendants tomorrow.”

Here’s to living longer, today. : )

***

Related Quote: “For breath is life, and if you breathe well you will live long on earth.” - Sanskrit Proverb

P.S. Here’s how I implement this in my life:

  • Nasal breathing 24/7.

  • 15 min of slow breathing in the morning w/ extended exhales.

  • 5-10 min of slow breathing before bed w/ extended exhales.

  • Practice Wim Hof style breathing, ~5-10 min a day.

2. A New Definition of “Breathe Light”

You’ve probably heard of Patrick McKeown’s fantastic Breathe Light exercise. But, motivated by this excellent post, I decided to add another definition of “breathe light:”

Perform slow nasal breathing in the sunlight.

Nasal breathing releases nitric oxide into the airways and carries it into the lungs. Sunlight liberates nitrite from your skin and increases circulating levels of nitric oxide. When combined, you get better blood flow and oxygenation.

As Dr. Steven Lin says in the post,

Sunlight + Slow Breathing = Health + Happiness

***

Related: Insufficient Sun Exposure Has Become a Real Public Health Problem

Related: Sunlight May Be the Next Beet Juice

Related: Ultraviolet Radiation-Induced Production of Nitric Oxide:A multi-cell and multi-donor analysis

3. “Vision and Breathing May Be the Secrets to Surviving 2020”

“Stress, he says, is not just about the content of what we are reading or the images we are seeing. It is about how our eyes and breathing change in response to the world, as well as the cascades of events that follow.”

- Scientific American

I know, I know, it’s 2021. But I’m a slow reader : )

In any case, this is an excellent article from Scientific American. Breathing, stress, vision, and Andrew Huberman—it’s just all-around amazing.

I hope you enjoy it as much as I did, if you haven’t already read it…

***

P.S. Thanks to Ben Greenfield for sharing this article, which is how I found it.

4. The Most Important Part of Your Breathing Practice

Whether you’re breathing for longevity, energy, relaxation, or any other reason, here’s the most important part of the practice: to practice.

***

P.S. Inspired by Brian Johnson’s Notes on Creativity On Demand

 
 
 
 

1 Quote

“Life is too short to be lived in fast forward. Slow down. Breathe it in. Enjoy it.”

– Ryan Holiday

 
 
 
 

1 Answer

Category: Sunlight and Respiration

Answer: Although sunlight helps humans produce nitric oxide, it provides plants with their energy through this process.

…

(Cue the Jeopardy! music.)

…

Question: What is photosynthesis?

In good breath,

Nick Heath, T1D, PhD
Diabetes is Tiny. You are Mighty.

P.S. I felt this on a spiritual level

 
 
 

Sign Up For The Breathing 411

Each Monday, I curate and synthesize information from scientific journals, books, articles, and podcasts to share 4 thoughts, 1 quote, and 1 answer (like "Jeopardy!") related to breathing. It’s a fun way to learn something new each week.

 
 

The Breathing 411 - Understand This, and You Will Understand Breathing

 

Happy Monday. I hope you enjoy this edition with a cup of coffee : )

Enjoy 4 thoughts, 1 quote, and 1 answer (like "Jeopardy") related to breathing.

 
 
 
 

4 THOUGHTS

1. Understand This, and You Will Understand Breathing

Breathing information is often contradictory:

  • Wim Hof tells you to breathe more oxygen.
    Patrick McKeown tells you to breathe less.

  • Oxygen is your body’s most important energy source.
    But the exhale is the most important part of the breath.

  • You need to teach yourself to tolerate higher levels of carbon dioxide.
    Carbon dioxide also causes fear in people who literally can’t feel fear.

  • Lung capacity determines longevity.
    But you also shouldn’t take big breaths.

  • And on & on

To understand breathing, you must accept that all of these are right, and all of them are wrong. It depends on the circumstance.

Despite its simplicity, breathing is one of the most complex functions in the human body. Blanket statements on "right or wrong" simply cannot be made without context. We must embrace the contradictions.

2. Should You Be Breathing Even Slower?

A study published in 2006 found that resonance frequency was inversely correlated with height. That is, the taller you are, the slower you need to breathe to synchronize your heart rate, breathing rate, and autonomic nervous system.

In their excellent book, The Healing Power of the Breath, Richard Brown and Patricia Gerbarg give this specific recommendation: "For people who are over six feet tall, the ideal resonant rate is three to three and a half breaths per minute."

So, if you’re over six feet tall, you might find that breathing slower than the typical recommendation of 5-6 breaths per minute works better for you. I fall into that category, and I’ve found 3 - 3.5 breaths per minute (currently 7 sec inhale, 11 sec exhale) to be my sweet spot.

3. What is Hyperventilation?

"Respiratory alkalosis is caused by hyperventilation or a respiratory rate in excess of that needed to maintain normal PCO2." - Essentials of Pathophysiology, pg. 205

"Hyperventilation is a term that describes breathing beyond that which is required to meet the metabolic needs of the body as reflected in the production of carbon dioxide." - Respiratory Physiology, pg. 128

Here are two different textbook definitions of hyperventilation. It’s actually pretty straightforward. And, as you can see, it doesn’t involve huffing and puffing. Thus, we can hyperventilate without even knowing it.

Two easy ways to check if you are overbreathing are the BOLT score and the CO2 Tolerance Test.

Two easy ways to fix it are to breathe through your nose and make your breathing quiet while at rest.

Thanks to 411 reader W.H. for inspiring this thought.

4. Is Breathing Woo-Woo?

It fascinates me that breathing, your body’s most important function, has kind of a "woo-woo" reputation. It shouldn’t. There is a mountain of scientific evidence showing its efficacy for health and wellness. For example, I have reviewed over 80 scientific papers, and HHPF seems to post a new one every day.

But you actually don’t need any of the science. Here is the quickest way to determine for yourself:

Hold your breath.

I think you will agree "breathing" isn’t woo-woo after only a few seconds.

Thanks to fellow breathing nerd R. vdC. for inspiring this thought.

 
 
 
 

1 QUOTE

"The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function."

- F. Scott Fitzgerald

 
 
 
 

1 ANSWER

Answer: The estimated prevalence of this condition is about 23% in women and 50% in men.

…

(Cue the Jeopardy music.)

…

Question: What is sleep-disordered breathing?

 
 

The Breathing 411 - What do 5,649 and 28,800 Have in Common?

 

Hello and Happy Monday. Welcome to another edition of The Breathing 4.1.1.

Below you’ll find 4 thoughts, 1 quote, and 1 answer (think "Jeopardy"). Enjoy!

 
 
 
 

4 THOUGHTS

1. What do 5,649 and 28,800 Have in Common?

"The average daily step count required to induce feelings of anxiety and depression and decrease satisfaction with life is 5,649. The typical American takes 4,774 steps per day. Across the globe, the average is 4,961." - Kelly McGonigal, The Joy of Movement

Active people become anxious and lose life satisfaction when their step count drops to 5,649 or less. That’s a bit staggering, given the U.S. and global step count statistics Kelly cites.

That passage got me thinking, "I wonder if there is a similar idea for breaths per day?" However, with breathing, it would be opposite: The more breaths you take, the more unhealthy you are. Sure enough, there is something close:

"Recent evidence suggests that an adult with a respiratory rate of over 20 breaths/minute is probably unwell, and an adult with a respiratory rate of over 24 breaths/minute is likely to be critically ill.” - Respiratory Rate: The Neglected Vital Sign

If your spontaneous breathing rate is over 20 breaths per minute, you are "probably unwell." That comes out to about 28,800 breaths per day.

So, do you want to feel unwell and anxious?
Take less than 5,649 steps and breathe more than 28,800 breaths per day.

Want to be happy and healthy?
Walk more, breathe less.

P.S. That 28,800 number might even be too high. James Nestor shares some great ancient wisdom on this:

"Chinese doctors two thousand years ago advised 13,500 breaths per day, which works out to nine and a half breaths per minute. "
- Breath

2. The Most Fundamental of the Fundamentals

Last week, Kobe Bryant provided an excellent example of the importance of practicing the fundamentals. We talked about how we don’t need to worry about the "latest and greatest" breathing technique. Instead, we need to focus on the fundamentals. They’re simple, but they’re not easy.

We can take that thought step farther: Breathing itself is the most fundamental of the fundamentals. We’re all in the sport of life. And that requires breathing…at least 13,500 times a day : ) So, let’s optimize that first, then work on the fundamentals of your particular sport or profession.

3. Bring Attention & Intention to Your Breathing

"Attention without intention is wasted energy." - Chris Bailey, Hyperfocus

This quote makes complete sense in terms of productivity, self-improvement, and group workouts (CrossFit, yoga, etc.). But the minute you apply it to something like sitting down to breathe, it can get misinterpreted:

"Set an intention for your breathing practice."

"Be intentional with your breathing today."

It’s just begging to be put in the "woo-woo" category and not be taken seriously.

But intentions are powerful (hence the quote from Chris Bailey). So a compromise I have made is to set scientific intentions before each slow breathing practice. "I am going to increase my heart rate variability" or "I am going to balance my autonomic nervous system."

These are just facts that I state at the beginning of my practice that work as intentions, without feeling woo-woo.

I find it to be an excellent way to give the practice more meaning. (And don’t forget to celebrate afterward!)

4. Slow Breathing for Hypertension

Slow, controlled breathing (<10 breaths per minute) has consistently been shown to be beneficial for reducing blood pressure. So much so that it is recognized by the American Heart Association for its positive effects. (They’ve given it a Class IIa, Level of Evidence B. Here’s what that means.)

This got me thinking about a paper published back in 2005 that I loved. They concluded:

"Slow breathing showed the potential to be a simple and inexpensive method to improve autonomic balance and respiratory control and reduce blood pressure in hypertensive patients." - Joseph et al. (2005)

The interesting part was that the authors provided an exciting hypothesis for how that’s occurring using autonomic function as the foundation. That hypothesis inspired me to create this little graphic to help get the point across.

Read the Full Summary for More Details.

 
 
 
 

1 QUOTE

My new favorite definition of success:

"To know that even one life has breathed easier because you have lived. This is to have succeeded."

- Ralph Waldo Emerson

 
 
 
 

1 ANSWER

Answer: The largest lung capacity of any mammal.

…

(Cue the Jeopardy music.)

…

Question: What is 5,000 liters (or 1,320 gallons)?

(For reference, the human lung has a capacity of about 6-liters.)

In good breath,
Nick

P.S. How I Feel Shopping on Amazon Now.