carbon dioxide

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Learn Better, 4 Gifts, and How Breathing Can Actually Change the World

,

Today is a special edition of The Breathing 411.

Because today is 4/11.

It’s also World Breathing Day.

And it also happens to be my 35th birthday (to celebrate, I did one breath per minute for 35 minutes this morning <— maybe I’ll make it a new tradition 🙏).

To honor the occasion, there are 4 Free Gifts in Thought #3 below.

Thank you from the bottom of my heart for reading.

With love,

Nick

 

🎧 Listen Instead of Reading 🎧

If you enjoy listening, you can subscribe to the audio version on Spotify, Apple Podcasts, and Audible so you don’t even have to look at the email 😊

 

4 Thoughts



1. How Breathing Can Actually Change the World, in 3 Super Practical Steps

  • Step 1: Tape your mouth at night.

  • Step 2: Breathe nasally 90-95% of the day.

  • Step 3: Forget about the rest, and use your newfound energy from Steps 1 & 2 to help you do whatever you were put on this planet to do.

2. ANB Significantly Enhances Learning and Retention of New Motor Skills

“Our results thus uncover for the first time the remarkable facilitatory effects of simple breathing practices on complex functions such as motor memory”

- Deep Breathing Practice Facilitates Retention of Newly Learned Motor Skills

This 2016 study on alternate nostril breathing (ANB), published in Nature Scientific Reports, genuinely blew my mind. (See full review in Thought #3.)

Here’s what they did:

  • Participants learned a new motor skill.

  • A control group rested for 30 minutes.

  • A breathing group did 30-min of ANB.

  • Then, both groups were tested on the skill they had learned.

  • Both groups were also tested again 24-hours later.

The results showed that the ANB group significantly (it was almost ridiculous) improved the learning and retention of that skill:

  • They were significantly better at the 30-min mark.

  • They were significantly better at the 24-hour mark.

One 30-minute breathing session. One day of improved learning and retention.

3. Science 411s, Book 411s, and The Breath is Life Learning Center (4 free gifts)

To celebrate World Breathing Day, here are four gifts.

Science 411s: 4 Fundamentals, 1 Big Takeaway, and 1 Practical Application

  • Free Science 411: Deep Breathing Practice Facilitates Retention of Newly Learned Motor Skills (the paper from Thought #2 above)

  • Free Science 411: Heart Rate Variability Biofeedback Improves Emotional and Physical Health and Performance: A Systematic Review and Meta Analysis

Book 411s: 4 Thoughts, 1 Quote, and 1 Idea That Will Change Your Life

  • Free Book 411: The Happiness Track: How To Apply The Science Of Happiness To Accelerate Your Success

  • Free Book 411: The Art of Impossible: A Peak Performance Primer

You can read, listen, or download them as PDFs here.

I hope you enjoy them!

4. Why We Breathe: Chemically and Spiritually

“Our drive to breathe is regulated by the medulla oblongata … When pH decreases (becomes more acidic due to the increase in CO2), chemoreceptors in the medulla send out a signal for the body to breathe. This means that our carbon dioxide levels have to rise to a sufficiently high level for our brain and body to know that it is time to take the next breath.”

- Inna Khazan, Ph.D.

It’s the perfect day to review why we breathe. So there’s the technical reason.

But breathing is a lot more than just gases. As Michael J Stephen, MD, tells us,

“That oxygen, life, and lungs all came into our world in relatively close succession is no coincidence. Only with oxygen and some means of extracting it are all things possible—thinking, moving, eating, speaking, and loving. Life and the breath are synonymous.”

So beyond chemistry, we ultimately breathe to live—to think, to move, to love. Breathing is, after all, what makes “all things possible.”


 
 
 

1 QUOTE

“It was ecstasy, it was sweet, air soughing in and all my little alveoli singing away with joy and oxygen-energy coursing through every space and particle of me.”

- Keri Hulme

 
 
 
 

1 ANSWER

Category: Body Chemical Composition

Answer: This gas is the most abundant element in the human body by mass.

…

(Cue the Jeopardy! music.)

…

Question: What is oxygen?

In good breath,

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

P.S. I’m only 35, I have my whole life ahead of me

 
 
 

* 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.

 
 

The Science of Presence, Beating Gravity, and How to Sleep Like a Pro

 
 

Listen Instead of Reading

 

Greetings,

Here are 4 thoughts, 1 quote, and 1 answer for this week.

I hope you enjoy it!

 
 
 
 

4 Thoughts


1. How to Sleep Like a Pro: Nose, 4-4-6-2, Repeat

“Breathe deeply and regularly…Try to breathe through your nose, keeping your mouth closed if at all possible. The more you breathe through your nose, the easier you will find it to breathe through your nose. In other words, use it or lose it.”

- Dr. Barbara Oakley and Olav Schewe, Learn Like a Pro

I didn’t expect to find anything about breathing in a book called “Learn Like a Pro,” which is geared mainly toward college students. But, to learn well, you need to sleep well. Enter: the power of the breath.

And their advice for falling asleep? Inhale for 4 sec, hold for 4 sec, exhale for 6 sec, hold for 2 sec. “This type of breathing balances both the oxygen and carbon dioxide levels in your body and allows you to relax more deeply.”

It’s just so awesome to see slow nasal breathing make its way into random places like this. If put into practice, these few sentences could change a student’s life forever. Simply amazing.

Here’s to sleeping (and learning) like a pro, tonight.

***

P.S. I’ve been having a little self-induced stress insomnia recently (such is life), so it was perfect timing for this passage.

Related: Self-Regulation of Breathing as an Adjunctive Treatment of Insomnia

2. Beating Gravity with Your Nose

“The results presented in this work provide evidence that the development of a substantial production of NO in the upper airways of humans may be an important part of our adaptation to life on two legs to ameliorate the influence of gravity on pulmonary blood flow distribution.”

- Nasal nitric oxide and regulation of human pulmonary blood flow in the upright position

Translation: Nasal nitric oxide might have been an evolutionary adaptation to counteract gravity, allowing us to sit and walk upright. 🤯

Gravity moves blood flow toward the base of the lungs. Nitric oxide, however, redistributes blood flow help better utilize the massive surface area of the lungs. This allows us to get more oxygen in the upright position.

So go take a walk, breathe through your nose, oxygenate your body, and enjoy this gift evolution has given us.

***

Related Quote: “Our own physical body possesses a wisdom which we who inhabit the body lack.” - Henry Miller

3. Psychology Today: “The Simplest Stress Management Skill”

“It may seem incredible that such a simple exercise can make a huge difference in a person’s ability to feel less stressed.”

- Dianne Grande, Ph.D., The Simplest Stress Management Skill

Of course, that “simple exercise” is slow deep breathing : )

This quick and excellent article touches on the vagus nerve and equal versus extended exhalations. It also provides some straightforward and practical guidelines for a “minimum effective dose” of slow breathing. Enjoy!

4. The Making of the Present Moment

“Your experience of the present moment is based on the activity of your nervous system at that moment. ”

- Rick Hanson, Ph.D., Neurodharma

We are always in the moment. As Howard Cohn says, “In truth, we are always present. We only imagine ourselves to be in one place or another.”

So what “presence” really refers to is experiencing our current moment. And as Dr. Hanson reminds us, our experience of any moment is just our nervous system at that moment. And the fastest way to access that? Our breath.

So experience your breath to experience presence. Or better yet, change your breath, change your nervous system, and use this science and physiology of presence to make your own moments.

***

Related Quote: “Breathe and you dwell in the here and now.” - Annabel Laity

Related Quote: “As such, the state of the autonomic nervous system underlies all psychological and physiological functioning, whether we are conscious of it or not. However, there is a bridge between our conscious mind and the subconscious action of the autonomic nervous system – breathing.” - The New Science of Breath

 
 
 
 

1 Quote

“Everything I have earned today was at least partially a result of breathing.  My best performance.  My emotional control. My ability to endure.  Breathing gave me all of this.”

- Rickson Gracie, Breathe: A Life in Flow

P.S. I listened to Breathe, so I apologize if the punctuation is incorrect.

 
 
 
 

1 Answer

Category: Breathing in the Womb

Answer: Babies are supplied oxygen in the womb through this tube-like structure.

…

(Cue the Jeopardy! music.)

…

Question: What is the umbilical cord?

In good breath,

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

P.S. it comes very naturally

 
 
 

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.

 
 

Breathing For Better Health, Easy Fixes, and How to Breathe with Stardust

 
 

Listen Instead of Reading

 

Hey,

Welcome back to another issue of The Breathing 411. Here are 4 thoughts, 1 quote, and 1 answer for this week.

I hope you enjoy it!

 
 
 
 

4 Thoughts


1. Posture is Easier with the Breath

“Question: Do I start with breathing correctly or addressing my posture?

Answer: Breathing comes first. Aligning your body correctly will come more easily once you have your breathing down. Plus, most cues to help with posture end up making a person tighten more rather than relax on the inhale.”

- Belisa Vranich and Brian Sabin, Breathing for Warriors

I constantly struggle with my posture (but only all the time 😂). So, I loved this answer from two of the world’s leading experts on the topic.

Additionally, as we’ve all probably experienced, you can’t really get a good breath unless you have good posture, so they really go hand-in-hand. Good breathing leads to better posture, and good posture leads to better breathing.

So sit up straight, take a relaxing breath, and enjoy the rest of this post : )

***

Related Quote: “What the bodily form depends on is breath (chi) and what breath relies upon is form. When the breath is perfect, the form is perfect (too)…Consequently, breath and form must be accomplished together.” - Chinese adage from The Primordial Breath (but I found it in Breath)

2. Fixing Hyperventilation Easily with Slow Breathing

“The mechanism by which hyperventilation is targeted by HRVB has not been proven, although it is reasonable to hypothesize that it involves a combination of slow breathing, decreased emotional and autonomic reactivity, and attention to breathing mechanisms for controlling it.”

- Applied Psychophysiology and Biofeedback (2020)

Because slow breathing increases HRV and improves autonomic and emotional reactivity, it naturally reduces your stress. It naturally improves your sensitivity to carbon dioxide. And it naturally optimizes gas exchange.

All of this helps you breathe calmer more often.

So to fix hyperventilation easily, maybe we don’t need to fix it at all? Perhaps we should just enjoy our slow breathing practice and, with time, let our improved physiological state naturally lead to optimal breathing volume.

This approach won’t be suitable for everyone, but if you struggle with overbreathing, this might be the best place to start.

***

P.S. Ironically, when people start a slow breathing practice, they often overcompensate for the slower rate by taking bigger breaths and end up mildly hyperventilating. For this reason, many researchers and coaches (myself included) suggest that slow breathing is not enough—we must also focus on breathing volume. However, as pointed out in this 2020 meta-analysis, slow breathing might self-correct with time.

3. Scientific American: “Proper Breathing Brings Better Health”

“Breathing is so central to life that it is no wonder humankind long ago noted its value not only to survival but to the functioning of the body and mind and began controlling it to improve well-being.”

- Scientific American

This is perhaps my favorite online article published about breathing. But, I realized I have somehow never shared it here.

I especially loved a part near the end. It’s almost as if the author is surprising himself with all the benefits of breathing as he’s researching and writing the article, and he can’t believe this stuff isn’t widely used:

“In fact, I am mystified that controlled breathing is not recommended and practiced more widely. Perhaps it is perceived as too simple, commonplace and obvious to be a remedy.”

Those were my exact feelings when I found “breathing.”

Enjoy the excellent read!

***

Related Quote: “Even more foolishly I had assumed that a universal awareness of the importance of breathing existed. Nothing could have been farther form the truth.” - Carl Stough (also found in Breath)

4. How to Breathe Stardust with Stardust

“Every atom in your body that is heavier than helium was made inside a star, usually as it was exploding.  Carbon, oxygen, iron, all of it. Take a breath, and breathe stardust with stardust. This body is billions of years old.”

- Rick Hanson, Ph.D., Neurodharma

That is all. 🤯

 
 
 
 

1 Quote

“A single breath has more truth in it than all your thoughts about breathing will ever have.”

– Adyashanti

P.S. Thanks to great friend E.S. for sending this quote to me. It’s almost as if that quote is specifically calling me out on this newsletter 😂

 
 
 
 

1 Answer

Category: Hyperventilation

Answer: It is suggested that adults with a respiratory rate greater than this number “should receive immediate medical review.”

…

(Cue the Jeopardy! music.)

…

Question: What is 27 breaths per minute?

In good breath,

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

P.S. “Guess we’ll head out too”

 
 
 

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.

 
 

Phil Jackson on Focused Breathing, Nature’s CO2 Trick, and Wisdom of Yoga

 
 

Listen Instead of Reading

 

Hey,

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

 
 
 
 

4 Thoughts


1. Don’t Let Your Breathing Get Featured to Death

“The answer starts with the noble intentions of engineers. Most technology and product design projects must combat feature creep, the tendency for things to become incrementally more complex until they no longer perform their original functions very well.”

- Chip and Dan Heath, Made To Stick

Breathing practices are simple. But, as humans, we tend to make things more complex. We let “feature creep” take over (guilty here). As Chip and Dan tell us, it’s an innocent process, but sooner or later, things get “featured to death.”

Feature creep can be seen in breathing in many ways—the infinite number of methods available, the untold number of bio-monitors you can wear, the countless places you can focus each breath.

These are all awesome things, and we should always be trying to improve our breathing. But, if your practice has lost its original function (relaxation, focus, etc.), then maybe it’s creeping too far.

Here’s to keeping our breathing fun and adding things that bring it more to life, not feature it to death.

***

Related Quote: “The hardest thing in the world is to simplify your life because everything is pulling you to be more and more complex.” - Yvon Chouinard, Patagonia Founder

P.S. I find this to be more of an art than science with my practice. What’s “too much” for me might seem like “not enough” for you, so it’s very personalized.

2. How Nature Tricked Us into Thinking Carbon Dioxide is So Important

When you get interested in breathing, you eventually get fascinated by carbon dioxide (CO2). The more you learn, the more you feel like you’ve been duped the whole time: “Breathing is really about CO2, not oxygen.”

Everywhere you look, this makes sense:

It just seems like CO2, not oxygen, is the star of breathing.

But just when you think you have it figured out, Nassim Taleb reminds you of the brilliance of Nature:

“It is all about redundancy. Nature likes to overinsure itself. Layers of redundancy are the central risk management property of natural systems.”

- Nassim Taleb, Antifragile

Ah-ha, reading this passage through the lens of breathing, we see it is really about oxygen. Nature is just smarter than us.

Nature built in layers of redundancy to ensure we always have enough—from our perspective, it seems wasteful. But paradoxically, that wasteful appearance is precisely due to how vital oxygen is.

As Taleb says, “Redundancy is ambiguous because it seems like a waste if nothing unusual happens. Except that something unusual happens—usually.”

There’s no real practical wisdom here, just fun to consider the genius of Nature and evolution. Here’s to never-ending learning and never-ending 🤯

***

Related Quote: "And if the traveler is fortunate…the destination is two miles farther away for every mile he or she travels." - George Leonard

3. Breathe through Your Nose! Modern Research Confirms the Wisdom of the Yoga Tradition

“Quite rightly, it revealed that breathing through the nose led to a 10 – 15% higher oxidation of the blood.”

- Eddie Weitzberg, M.D. Ph.D.,

Breathe Through The Nose! Modern research confirms…

Of course, if I see an article that starts with “Breathe through the nose!” I’m going to read it and share it : )

And even better, this one was written by one of the pioneers in nasal nitric oxide research, Dr. Weitzberg. He was part of the (now somewhat famous) study showing nose breathing increases oxygen by 10-20%.

It’s a quick read and a good reminder of how powerful nasal nitric oxide is.

Enjoy!

***

P.S. Check out the 3rd paragraph in the grey box titled “Nadi Shodana – to counter asthma.” It’s the best explanation I’ve heard for pinching your nose closed on a breath hold.

4. Phil Jackson on Focused Breathing Before a Big Game

“When we made it to our banquet room, five minutes ahead of schedule, every player was already in his spot ready to sit and breathe together.”

- Phil Jackson, Foreword in The Mindful Athlete

This was the morning of Game 7 in the 2002 Western Conference Finals. The Lakers won in overtime. Phil Jackson said the players kept the same cool on the court in overtime as they had in the banquet room breathing together.

Did they win because of breathing? Of course not. But did it help? Probably.

As Phil goes on to say:

“A lot of athletes think the trick to getting better is to just work harder, but there is a great power in non-action and non-thinking. The hardest thing after all the work and all the time spent on training and technique is just being fully present in the moment.”

Focused breathing helped the Lakers achieve just that.

 
 
 
 

1 Quote

“Breathing is the only system in the body that is both automatic and also under our control. That's not an accident of nature, not a coincidence. It's an invitation, an opportunity to take part in our own nature and evolution.”

– Dr. Belisa Vranich and Brian Sabin, Breathing for Warriors

 
 
 
 

1 Answer

Category: Nature and Oxygen

Answer: Although still up for debate, it is recognized that these trees generally give off the most oxygen.

…

(Cue the Jeopardy! music.)

…

Question: What are Douglas-fir, spruce, true fir, beech, and maple?

In good breath,

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

P.S. Liked them and adopted them

 
 
 

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.

 
 

Exciting News: A New Breathing Gas Discovered

 

Happy Monday. There was a breakthrough in breathing research over the past few weeks: A new breathing gas has been discovered. I hope the extra hour of sleep you got this weekend will help this exciting news sink in even deeper.

OK, let’s get to it. Here are 4 thoughts, 1 quote, and 1 answer for you to think about as we begin November.

 
 
 
 

4 THOUGHTS

1. A New Breathing Gas Discovered

"Thus, H2S [hydrogen sulfide] produced by CBS surely has a crucial role in maintaining eupneic-pattern respiration."

- Nature, Communications Biology

Hydrogen sulfide. It’s toxic, and it’s what gives rotten eggs their rotten smell. It also helps maintain our breathing.

A study published in Nature: Communications Biology on October 16, 2020, found that a small amount of hydrogen sulfide is critical to maintaining normal breathing. It does this through modification of the neural connections in the region of the brain that controls breathing.

When hydrogen sulfide production was stopped in rats, normal breathing turned to gasping, implying that it is vital to maintaining rhythmic breathing.

From a practical perspective, I’m not sure what this means yet. At a minimum, breathing now appears to be a four-gas system: oxygen, carbon dioxide, nitric oxide, and hydrogen sulfide.

We’ve found ways to breathe to optimize the first three. However, it’s not yet clear if the way we breathe (or do anything else, for that matter) can influence hydrogen sulfide.

In any case, as a fellow breathing nerd, I hope you find this as fascinating and humbling as I did. Here’s to the joy of never-ending learning.

P.S. Here’s a short summary of these findings from ScienceDaily.

2. The Single Most Important Part of the Breath

"Interestingly, Törnberg et al. recently showed that more NO is released from the nasal passages during nasal inhalation compared with exhalation." - Lundberg et al. (2008)

Here is yet another reason why inhaling through your nose might be the single most important part of breathing: nitric oxide (NO) production is much greater during inhalation than exhalation.

Here’s the finding from the paper mentioned above: "There was a marked flow dependency of nasal NO output, with the highest levels observed during inhalation at flows similar to those seen during normal breathing." - Törnberg et al. (2002)

In hindsight, this makes complete sense. NO helps protect our lungs from inhaled pathogens and it redistributes blood flow in the lungs. So, of course our bodies would maximize it on the inhale. But it wasn’t until I read these two papers that it made sense to me.

"The obvious is that which is never seen until someone expresses it simply.” - Kahlil Gibran

3. What Focusing on the Breath Does to Your Brain

"Conversely, it may be possible to reduce fear and anxiety by slowing down our breath." - Greater Good, UC Berkeley

Here is a quick-reading article, packed full of excellent information, from The Greater Good Science Center at UC Berkeley. Anytime you see a headline like "Managing stress: Is it all in the breath?" you know it’s going to be a good read. Enjoy!

4. Sleep Scientists Call for the Elimination of Daylight Saving Time

"It is, therefore, the position of the American Academy of Sleep Medicine that these seasonal time changes should be abolished in favor of a fixed, national, year-round standard time."

- Journal of Clinical Sleep Medicine

I hope you all enjoyed the extra hour of sleep you got this weekend. The world’s leading sleep scientists say your body will function better, and they suggest we keep it this way (Standard Time) forever.

The above article is pretty short. But if you’re interested, here’s an even more concise summary, along with a rather impressive list of organizations that support the permanent change to Standard Time.

Because nasal breathing at night changed my life, I am endlessly fascinated with sleep. So I hope we all enjoy the next few months of better sleep and better optimization of our body's wake-light cycles.

 
 
 
 

1 QUOTE

“A mind that is stretched by a new experience can never go back to its old dimensions.”

- Oliver Wendell Holmes

 
 
 
 

1 ANSWER

Answer: Average walking speed (~2-4 mph) is also around the average speed of this physiological function.

…

(Cue the Jeopardy music.)

…

Question: What is blood flow?

In good breath,
Nick

P.S. New life in a new city.

 
 

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?

 
 

Can Overbreathing Cause Osteoporosis?

 

“Life-transforming ideas have always come to me through books.” - Bell Hooks

 
 
 
Overbreathing_Osteoporosis_1_New.png
 
 
 

This week, I want to look at a few fascinating passages on overbreathing from “Breath: The New Science of A Lost Art.”

Let’s start with James Nestor’s insight into tissue hypoxia (my bold for emphasis):

“In this, chronic overbreathing will not create ‘hypoxia’ in tissues; this is a fact that many Buteyko adherents consistently get wrong.  The real damage from overbreathing comes from the constant energy the body has to expend to run more cells anaerobically and to constantly buffer for carbon dioxide deficiencies.”

So James is saying that tissue hypoxia itself is not the problem with overbreathing. The damage occurs because of the body’s response to prevent tissue hypoxia from happening.

Overbreathing and Cell Metabolism

Aerobic = “With Oxygen”

Anaerobic = “Without Oxygen”

This damage occurs partially because of sustained anaerobic metabolism. We have all probably heard of aerobic and anaerobic exercise. Slow and steady is typically aerobic, fast and intense is usually anaerobic. We don’t have to think about it. When we push ourselves, our oxygen supply can’t keep up, and our body naturally switches to anaerobic metabolism.

This anaerobic switch creates a more acidic local environment, which will help release oxygen from the hemoglobin and help restore aerobic energy production.

But, with chronic overbreathing, this aerobic balance cannot be achieved.  So your cells are running as if you’re always doing high-intensity training…not the most efficient way to spend your day.

But that’s not even the worst part of overbreathing.

Restoring pH Balance Causes the Real Damage

The body is always trying to find balance, and this is especially true for pH. Blood pH is kept in a tight range (around 7.4) to allow the body to function correctly.

When we chronically overbreathe, we offload too much carbon dioxide, which increases pH. The body compensates through a process called “buffering,” where the kidneys begin releasing bicarbonate into the urine to restore pH balance. The real damage comes from what bicarbonate takes with it:

“This occurs because as bicarbonate leaves the body, it takes magnesium, phosphorus, potassium, and more with it. Without healthy stores of these minerals, nothing works right: nerves malfunction, smooth muscles spasm, and cells can’t efficiently create energy.” - James Nestor

Overbreathing Weakens Our Bones

All of which leads us to how overbreathing can contribute osteoporosis:

“Constant buffering also weakens the bones, which try to compensate by dissolving their mineral stores back into the bloodstream. (Yes, it’s possible to overbreathe yourself into osteoporosis and increased risk of bone fractures.)” - James Nestor

Alright, let’s break these steps down to see how this happens:

  1. Overbreathing offloads too much carbon dioxide, preventing adequate oxygen delivery to the cells.

  2. The cells compensate with chronic anaerobic metabolism.

  3. The kidneys compensate by excreting bicarbonate into the urine to balance pH.

  4. The excretion of bicarbonate “steals” important minerals from the blood.

  5. The bones then compensate by dissolving minerals back into the blood, which weakens them.

It is simultaneously amazing and scary what our bodies are capable of.  

There is Always Good News

Although this negative feedback loop is alarming, there is a way to prevent or reverse it: Stop overbreathing.

And the best way to do that? Breathe through your nose, breathe slowly, and breathe slightly less than you think you need.

In good breath,
Nick

P.S. Just Along for the Ride.

 
 

Two Simple Ways to Improve Your Sleep Tonight

 
Walk_With_Purpose_Dickens.png
 
 

Charles Dickens just walked into a hotel room. The year is 1860. As arguably the most famous author alive, you might think he set up his writing station and poured a glass of Brandy. Instead, he pulled out his compass and rearranged the place [1].

Dickens’ Odd Fix for Insomnia

Dickens believed that sleeping with his head toward the north helped with his insomnia. This sounds funny but is probably more helpful than his previous solution, which was to walk all night, sometimes covering up to 30 miles [2].

Although Dickens’ sleeping habits were peculiar, it was his keen observations of others that changed sleep science.

Joe’s Snoring and Sleep Science

In 1836, Dickens began writing The Posthumous Papers of the Pickwick Club, also known as The Pickwick Papers. In it, Dickens’ character “Joe” displayed all of the classic characteristics of sleep apnea. Joe was always tired, he fell asleep during the day, and he snored loudly.

Sleep scientists credit this work as being the first accurate observations of sleep-disordered breathing [3], recording it 120 years before the science caught up.

Modern Sleep Science Catches Up

Today, estimates of sleep-disordered breathing are, well, breathtaking. The term “sleep-disordered breathing” itself is rather generic. It covers a wide range of issues related to sleep and breathing (most commonly, obstructive sleep apnea).

However, in 1996 a review study was published that sheds light on the mechanisms that cause sleep-disordered breathing. This research helps explain why it is so common and provides suggestions as to what we can do about it.

Sleep and Breathing State-of-the-Art Review: Sleep-Induced Breathing Instability

(Published in Sleep in 1996 — Click Here to Read Full Summary)

The main conclusion from this study is that your breathing system does not work the same during sleep as it does during wakefulness.  

For example, there is less input to the muscles that keep your upper airways open, which can narrow or collapse them. This narrowing of the upper airways also increases breathing resistance. Additionally, sleep dampens the chemoreflexes that usually keep blood pH in a tight range. 

Interestingly, this “State-of-the-Art Review” concluded that carbon dioxide (CO2) could potentially help with sleep-disordered breathing. CO2 could stimulate the chemoreflexes that keep breathing steady. Additionally, CO2 is a smooth muscle dilator, which would help increase blood flow to the muscles that keep the airways open.

Two Ways You Can Start Tonight

1. Tape Your Mouth

You can start adding CO2 to your breathing tonight by taping your mouth during sleep, which will reduce breathing volume and increase CO2.

Paradoxically, while nose breathing increases resistance during the day, it reduces upper airway resistance during sleep. This small change will help you breathe better during sleep and wake up feeling refreshed and energized.

2. Breathe Less During the Day

You can also practice light breathing during the day to train your body to tolerate more CO2. By doing this consistently, you can reset your baseline CO2 back to normal values and ultimately improve your breathing during sleep.  

In good breath,
Nick

P.S. I think we all need a smile like this right now.

References

[1] Source: https://www.pharmaceutical-journal.com/opinion/blogs/how-dickens-got-a-good-nights-sleep/11074673.blog (I made up the little hotel story to go with it…he might have in fact poured some Brandi too…)

[2] Source: https://academic.oup.com/sleep/article/15/3/264/2749285 

[3] Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3365094/

 

The benefits of resistance breathing

Hi all,

When I first saw the breathing mask from the Oxygen Advantage, I swore I’d never use it. I thought wearing a mask for breathing was silly. What I love about breathing is its simplicity.

However, because I got the Sports Mask as part of the training a couple weeks ago, I gave it a shot. And now I’m hooked.

What the mask does:

  • Adds resistance to your breathing

  • Increases carbon dioxide tolerance

  • Helps drop oxygen saturation

Your diaphragm is probably one of your most underworked muscles. The added resistance of the mask helps strengthen your diaphragm, leading to more efficient breathing.

The mask is also designed to pool carbon dioxide (CO2). If you’ve been following my work at all, you know the importance of CO2. The mask makes it easy to feel ‘air hunger’ without even trying. This will help build CO2 tolerance over time.

Lastly, because the mask limits air inflow, it also makes it easier to practice intermittent hypoxia. A brisk walk on the highest resistance setting easily drops me into mild hypoxia (SpO2 ~95%).

How I Use The Breathing Mask

I am currently using the breathing mask 2 times a day, for a total of ~10 minutes.

In the morning, I take around 15 big breaths (nasally) on the highest resistance setting as “inspiratory muscle training”. After this, I do a 4-minute workout of squats, push-ups, and plank, with the mask on the lowest resistance setting. This is surprisingly difficult.

At night, I do a series of stretches with the mask on the highest resistance setting.

———

Over the past 3 weeks, I’ve noticed that the exercises with the mask have gotten easier. I’m sure it’s partially a mental adaptation, but I also feel that my breathing is easier and my CO2 tolerance is increasing. (Note: My CO2 Tolerance Test score has increased from ~45 sec to around 67 sec, but I have made other changes, especially to my sleep, which have also helped.)

If you are at all interested in resistance breathing, I recommend you give it a shot. The benefits are real and quickly noticeable. Obviously, I’m a fan of the Oxygen Advantage® Sports Mask, but there are plenty of others out there. Just make sure you get one that supports nasal breathing.

In good breath,
Nick

P.S. The change I made to my sleep was to add 2-2.5 hours after dinner before going to sleep. The author of The Longevity Paradox recommends 4 hours, but that isn’t practical with my schedule. However, adding just 2 hours between dinner and bedtime has substantially improved my sleep and breath hold times. Besides taping, this might be the 2nd easiest change I have made that has substantially improved my overall quality of life.