mouth breathing

,

More Loving Potential, Cold Showers, and the Healing Power of Mind

,

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 to Improve Your Loving Potential

“High vagal tone, then, can be taken as high loving potential. … Compared to people with lower vagal tone, those with higher vagal tone experience more love in their daily lives, more moments of positivity resonance.”

- Barbara Fredrickson, Love 2.0

High vagal tone = high loving potential. That’s pretty awesome.

And fortunately, we can immediately increase our vagal tone with just a few minutes of slow breathing. We can also improve our baseline vagal tone with just 10-20 minutes of slow breathing every day.

So breathe less, love more.

2. Do Cold Showers Improve Breathing Efficiency? (my guess is yes)

“It’s very simple. A cold shower a day keeps the doctor away.”

- Wim Hof, The Wim Hof Method

Wim also tells us that when we practice cold exposure, we exercise our “sixty-two thousand miles of veins, arteries, and capillaries,” ultimately improving blood flow.

This matters because we need adequate blood flow to get oxygen and nutrients to the cells. Thus, better blood flow = better breathing.

So, in addition to keeping the doctor away, we might guess that a cold shower a day keeps us breathing in an efficient way…

Learn more cold benefits in the Book 411 and Science 411s available as part of the Wim Hof Wisdom Bundle.

3. One Reason (of many) We Began Habitually Mouth Breathing

There are lots of reasons why mouth breathing is so prevalent, but this is one I hadn’t heard that makes a lot of sense:

“Of course it's often tough to avoid mouth breathing, especially since we started living much of our lives indoors. … Enclosed spaces are areas where allergens (substances that cause allergies) tend to concentrate. … In turn these allergy-friendly environments increased the odds that children would early on develop upper respiratory problems.”

- Sandra Kahn & Paul Erhlich, Jaws

4. A Small Thought on Adding Meaning

Your birthday, January 1st, or any holiday are all just ordinary days.

What makes them so fun is that we add meaning to them.

And what’s amazing is that we can use this power of meaning anytime we want.

We can make an ordinary breath practice extraordinary by adding meaning to it.

We can make anything extraordinary by adding meaning to it.

Being with Diabetes: Meditation as Medicine

Just a quick reminder from last week. The Diabetes Sangha’s Being with Diabetes course starts January 15th.

I hope you’ll check it out if you have diabetes or live/work with people that do 🙏

Here’s the 20% discount code they graciously offered 411 readers/listeners:

Discount Code: BREATHE-20

Click Here to Learn More

1 Quote

“Gradually, study after mind body study, carried out with the most careful scientific protocols, produced incontrovertible evidence that the mind can indeed influence—and heal—the body.””
— Herbert Benson, MD

1 Answer

Category: Airway Anatomy

Answer: The roof of the mouth can equally be called the floor of this.

…

(Cue the Jeopardy! music.)

…

Question: What is the nasal cavity?

In good breath,

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


P.S. New Year’s resolution off to a good start

* 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.

 
,

Therapeutic Mouth Breathing, Focus, and My Favorite Breathing Parable

,
 

Listen Instead of Reading

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4 Thoughts



1. How Breathing Gets You Focused: The Noradrenaline Sweet Spot

“Noradrenaline is also released, though in different amounts, during times of intense focus, curiosity, or passion, promoting the growth of new connections in the brain. Researchers…found that slow, controlled, deep breathing helps the brain nail the noradrenaline “sweet spot,” heightening attention and getting people laser focused.”

- Leah Lagos, Psy.D., Heart Breath Mind

Next time we need to get laser focused, let’s breathe slowly and deeply to hit our “noradrenaline sweet spot.” Simple and highly effective 🙏

***

Related: Why Breathing Gets You Focused (and 5 ways to do it)

2. The Best (and most therapeutic) Form of Mouth Breathing Is…

Laughter.

Lately, I’ve been spending 10-20 min/day listening to comedy. It’s my new favorite “breathing exercise” 😊

Give it a try, and enjoy a little more laughter therapy this week.

3. Why Slow Breathing Helps Reduce Blood Pressure

“The connection between stress and blood pressure is the autonomic nervous system, which regulates the tone of the smooth (involuntary) muscle that lines the walls of arteries. The sympathetic branch of that system constricts arteries, increasing blood pressure, while the parasympathetic branch relaxes them, lowering pressure.”

- Andrew Weil, MD, Mind Over Meds

Slow breathing activates the parasympathetic branch of our nervous system. As we learn here, this relaxes our arteries and lowers blood pressure.

And with regular practice, we increase the tone of the parasympathetic nervous system, leading to long-term reductions in blood pressure.

4. My Favorite Breathing Parable

From Larry Rosenberg in Breath by Breath:

“An ancient teaching from India points to this truth. There was a conference of all the human faculties, all the senses, which in the Indian tradition are six. The five senses plus the mind. As at many meetings, they first had to decide who would be in charge. Sight popped up and put in its bid, creating beautiful images that had everyone enraptured. Smell arose and created powerful and haunting aromas that left everyone tingling with anticipation. But taste could top that with astounding and delectable flavors from all the world's cuisines. Hearing created exquisite harmonies that brought everyone to tears, and the body brought on physical sensation that had everyone in ecstasy. And the mind spun out intellectual theories that took on beauty by the depths of the truth they expressed. Along came the breath, not even one of the senses, and said it wanted to be in charge. All it could present was the simple in and out breath. Not terribly impressive in the face of everything else. No one even noticed it. The other senses got into a tremendous argument about which one of them would be chosen. The breath, in its disappointment, began walking away. And the images began to fade. The tastes lost their savor. The sounds diminished. “Wait!” the senses called out. “Come back! You can lead, we need you.” And the breath came back and took its proper place.”*


1 QUOTE

“The soul is the child of the breath, and breath is the mother of the soul. Soul and breath follow each other just as form and shadow do.”
— The Primordial Breath
 

1 ANSWER

Category: Breath & Biology

Answer: Breathing is part of a larger biological idea called this, which broadly represents our ability to adapt for optimal functioning within a defined biological system.

…

(Cue the Jeopardy! music.)

…

Question: What is symmorphosis?

Extra: How to Easily & Effectively Build Breathing Exercises Into Your Daily Routine

Here’s another guest blog I wrote for ResBiotic. If you’re looking for some simple ways to include breathing into your day, I think you’ll find it helpful. Enjoy!

How to Easily & Effectively Build Breathing Exercises Into Your Daily Routine

In good breath,

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

P.S. Me neither…

Breathing for Diabetes:

If you love learning about breathing, or just want to live an overall healthier life, I think you’ll really enjoy this class (diabetes or not).

 
 

* 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.

 
 

A Shared Theme, Heal the Body, and Tony Robbins's 3 Breathing Practices

 
 

🎧 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. A Shared Theme: Breathing is the Most Accessible Tool We Have

“Breath is a direct, easy, accessible, and rapid way to shape the state of the nervous system. … The way we breathe says a lot about the state of our body and the story we are living.”

- Deb Dana, The Polyvagal Theory in Therapy

This echoes so many of the thoughts shared here; that’s why I love it so much.

It’s incredibly inspiring to find common themes in books on happiness, health, strength, mindfulness, therapy, philosophy, and on & on. And one they all come back to is this: breathing is the most accessible tool we have for optimal living.

2. A New Definition of Shallow Breathing

“Shallow Work: Noncognitively demanding, logistical-style tasks, often performed while distracted. These efforts tend to not create much new value in the world and are easy to replicate.”

- Cal Newport, Deep Work

We used Cal’s Deep Work Hypothesis to generate the Deep Breath Hypothesis. Let’s use this one to create a new definition of Shallow Breathing:

Shallow Breathing: Noncognitively demanding, rapid-style breaths, often performed through the mouth. These breaths tend to not create much value in our bodies and are easy to habituate.

3. The 3 Breathing Exercises Tony Robbins Uses

I just finished up Tony Robbins’s (literally) massive new book, Life Force. The audiobook is 22 hrs 50 mins! For a book called “Life Force,” I didn’t expect it to take ~10 hours to get to anything about breathing…but I digress 😊

In any case, it was worth the wait. Here’s how Tony uses breathing:

Breathwalking: “For example, one breathing pattern entails inhaling for four seconds, holding your breath for four seconds, exhaling for four seconds, and holding your breath for four seconds. A segmented 4:4 pattern that you can continue for several minutes while you walk in order to boost your energy and mental clarity.”* (He said this breathwalking method was one of his first intros to breathing, but I’m not 100% sure this is exactly the pattern he uses now.)

Really (really) Slow Breathing: He uses a 1:4:2 ratio breath with an 8-sec inhale, 32-sec hold, and 16-sec exhale, 1-3x a day. “I utilize this strategy to train the body to fully oxygenate by holding the breath longer and exhaling twice as long as you inhale, in order to eliminate toxins and stimulate the lymph system. I found it an invaluable tool to enhance my energy, my state of mind, and my sense of well-being.”*

Energizing Breathwork: “I also use a more explosive breath when I'm tired and need to snap myself into a peak state right before getting on stage. I drink my water, do my breathing, and I'm ready to rock and roll.”* Not sure what method he uses, but it might be Bhastrika (or Wim Hof breathing).

4. All Life Sciences are Breath Sciences

If breath is life, then all life sciences are, in some way, breath sciences.

  • Heart science is in some way breath science.

  • Brain science is in some way breath science.

  • Physiology is in some way breath science.

  • Psychology is in some way breath science.

  • & on and on

If you study life, you study breath : )

 
 
 
 

1 QUOTE

“Science is beginning to investigate in a serious manner something humanity has known for centuries—that the breath can be used to heal the body.”

- Michael J Stephen, MD, Breath Taking

 
 
 
 

1 ANSWER

Category: Respiratory System

Answer: The hollow organ that allows you to make sounds with your breath is called this.

…

(Cue the Jeopardy! music.)

…

Question: What is the larynx (or voice box)?

In good breath,

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

P.S. Deep deep work

 
 
 

* 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 Breathing Improves HRV, Sleep, and “Keep Breathing. That’s the Key”

 
 

Listen Instead of Reading

 

Greetings,

I realized that last week marked one year of The Breathing 411—and 2.5 years of sending a weekly breathing newsletter. 🤯

Writing this newsletter is my favorite thing in the world to do, so thank you for reading, sharing, and practicing these ideas.

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

Enjoy!

 
 
 
 

4 Thoughts


1. The Mechanisms of How Breathing Improves HRV

“Inhalation causes an immediate rise in heart rate, followed (∼5 s) by increased blood pressure and baroreceptor firing. Exhalation results in an immediate decrease in heart rate followed (∼5 s) by decreased blood pressure and baroreceptor firing.”

- A Practical Guide to Resonance Frequency Assessment for Heart Rate Variability Biofeedback,
Frontiers in Neuroscience

Have you watched the Huberman Lab video showing how breathing immediately impacts heart rate? Check it out. The above passage explains how that process goes on to improve HRV.

Specifically, it’s that ~5-second lag between the rise and heart rate and rise in blood pressure that’s critical. And it’s this lag that makes breathing at a 5in/5out rhythm so beneficial (although it’s slightly different for everyone).

When we breathe like this, the messages from our breath and blood pressure synchronize, increasing their amplitude and increasing HRV.

Thus, there’s to magic behind how slow breathing improves HRV. It’s simply a harmony of body messages, which increases efficiency and, subsequently, improves resiliency and overall health.

***

Related: #2 Why Trampolines Are More Useful Than Science To Explain Slow Breathing

Related Quote: “The optimum breathing rate is about 5.5 breaths per minute. That’s 5.5-second inhales and 5.5-second exhales. This is the perfect breath.” - James Nestor, Breath

2. Breathing’s Version of Powered In, Unplugged, and System Restarts

  • Nasal breathing is like having your computer plugged in. You’re getting a constant supply of energy via your power chord (nose and nasal airways).

  • Mouth breathing is like unplugging from the charger. Sometimes it’s needed, and you can make it for some time, but eventually you’ll run out of juice.

But suppose you keep your computer plugged in 24/7, even at night when you close your laptop (via mouth tape).

What happens in that case? Well, even then, you’ll eventually have too many things running. You’ll need a restart.

Methods like Wim Hof/SKY/Tummo serve as this restart for your nervous system. They clean out all the junk, allowing you to return to your baseline.

Here’s to using our breathing to optimize our energy and meet whatever demands our systems have.

3. “Can Breathwork Help You Sleep? An Expert Explains”

“If you want to engage in breathwork for sleep, don’t get too hung up on the details. The key is to slow down your breath and really direct it to your belly using your diaphragm.”

- Can Breathwork Help You Sleep? An Expert Explains

In this article, Molly Atwood, an assistant professor of psychiatry and behavioral sciences at Johns Hopkins University, explains why deep breathing is so helpful for sleep. It’s super quick and practical—I loved it.

It was especially refreshing that there was nothing fancy or complex: “It’s not a super complicated thing to practice,” she says. “I think it would be hard to find something that would steer you completely wrong.” Amen, and enjoy!

***

Related: Self-Regulation of Breathing as an Adjunctive Treatment of Insomnia in Frontiers in Psychiatry, 2019

Related: Mindfulness training helps kids sleep better, Stanford Medicine study finds (July 6, 2021)

4. Turning Breathing Knowledge into Breathing Wisdom

“But not until that moment…did that knowledge become wisdom, that is, become how I felt.”

- Alex Lickerman, MD, The Undefeated Mind

What a perfect distinction for when knowledge becomes wisdom: It’s that moment when something you know becomes how you feel.

Here’s to turning breathing knowledge into breathing wisdom through continuous learning, practice, and insights.

***

P.S. Dr. Lickerman also describes an insight as “that most mysterious of experiences in which knowledge takes root in a person’s psyche and alters what he believes and therefore how he behaves.” Love it.

Related Quote: “Only knowledge that is used sticks in your mind.” - Dale Carnegie

 
 
 
 

1 Quote

“Keep breathing. That’s the key. Breathe.”

- Gimli, Lord of the Rings: Two Towers (link to video)

P.S. Thanks E.S. for that quote. Along with sending me ridiculously good science articles, he also hits me with gems like this : )

 
 
 
 

1 Answer

Category: Nasal Breathing and the Brain

Answer: Nasal airflow is encoded in this part of the brain, which then is projected onto emotional regions of the brain.

…

(Cue the Jeopardy! music.)

…

Question: What is the olfactory bulb?

In good breath,

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

P.S. My entire personality for the next 3 weeks

 
 
 

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.

 
 

A Buffet of 13 Interesting Breathing Articles

 
 
 

I’ve been out of town, with less time than normal to work on the newsletter. So, I decided to share a buffet of interesting breathing articles this week.

I hope there are a few you enjoy!

 
 
 
 

4 Thoughts

1. Study Shows How Slow Breathing Induces Tranquility

“Breathe slowly and smoothly. A pervasive sense of calm descends. Now breathe rapidly and frenetically. Tension mounts. Why? It’s a question that has never been answered by science, until now.”

- Stanford Medicine News Center

We all know that slow breathing calms us, and fast breathing stimulates us. But in this great article, we learn that there are specific neurons “spying” on our breathing, “reporting their finding to another structure in the brainstem.”

Enjoy the interesting read!

Thanks to new 411 reader A.L. for inspiring this thought!

Related: Feeling anxious? The way you breathe could be adding to it

Related: What Focusing on the Breath Does to Your Brain

2. This Ridiculously Simple Breathing Technique Is Scientifically Proven to Improve Mental Focus

“I can't promise that it will make everything go smoothly, or take all your jitters away. But I can guarantee that you'll feel more focused and calm than you did before.”

- Inc. Magazine

Perfectly said. If you need a quick way to increase focus, it might be as simple as making “your exhalations longer than your inhalations.”

Enjoy the super quick read.

And, if you want to dive deeper down the rabbit hole, here are a few more:

Related: Diaphragmatic Breathing Exercises and Your Vagus Nerve

Related: Longer Exhalations Are an Easy Way to Hack Your Vagus Nerve

Related: Slower Breathing Facilitates Eudaimonia via Your Vagus Nerve

Related: This 2-Minute Breathing Exercise Can Help You Make Better Decisions, According to a New Study

3. The Importance of Breathing, from the American Institute of Stress

Please do yourself and favor and check out this issue of Contentment from the American Institute of Stress. They dedicated the entire thing to breathing.

Here’s what’s included:

  • The Health Benefits of Nose Breathing

  • Healing Power Of The Breath

  • The Setup Breath: Exhaling Deeply First

  • Re-Association: Fusing Awareness and Sound with Deep Breathing Practices

  • Take A Deep Breath

  • Yogic Breathing: Ancient and Modern

  • One-Minute Relaxation Exercise for Busy People

The first two were my favorites. You’re sure to find one or two you enjoy too.

P.S. I found this through an excellent Medium blog post.

4. Significant Brain Changes Found in Children Who Regularly Snore

“Children who regularly snore have structural changes in their brain that may account for the behavioral problems associated with the condition including lack of focus, hyperactivity, and learning difficulties at school.”

- Significant Brain Changes Found in Children Who Regularly Snore

This was a somewhat troubling read on how sleep-disordered breathing might explain hyperactivity and aggression in children.

With complex issues like these, it’s likely not as simple as “one thing.” But, this is an important read, especially if you have or work with children.

Thanks to great friend E.S. for sharing this with me.

Related: The influence of snoring, mouth breathing and apnoea on facial morphology in late childhood: a three-dimensional study. Thanks to HHPF for sharing this one.

Related Quote: “If respiration truly acts as a fundamental organizer of oscillatory brain activity, then surely its modulation could be utilized to modulate brain activity to promote sleep.” - Frontiers in Psychiatry (2019)

 
 
 
 

1 Quote

“In a single breath, more molecules of air will pass through your nose than all the grains of sand on all the world’s beaches—trillions and trillions of them.”

- James Nestor, Breath

 
 
 
 

1 Answer

Answer: In the early 1770s, this gas was independently discovered in England and Sweden.

…

(Cue the Jeopardy! music.)

…

Question: What is oxygen?

In good breath,

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

P.S. Enough for the next 11 days

 
 
 

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.

 
 

On Recovering Better and Setting A Breathing Budget

 

Welcome back to another issue of The Breathing 411. Here are 4 thoughts, 1 quote, and 1 answer to end November with.

 
 
 
 

4 THOUGHTS

1. You Already Work Hard Enough—Recover Harder

"The problem in today’s corporate world, as well as in many other realms, is not hard work; the problem is insufficient recovery."

- Tal Ben-Shahar

We all work hard enough. That’s likely not the problem. In fact, it’s probably the opposite: We need to be focusing on recovery so we can continue to work hard.

One excellent way to do this is with diaphragmatic breathing.

For example, imagine taking a group of 16 endurance cyclists and having them see how far they can go in 8 hours. Then, you split them into two groups. One group performs 1 hour of diaphragmatic breathing post-event. The other group reads quietly. That’s what a study published back in 2011 did.

The outcome: The diaphragmatic breathing group showed reduced oxidative stress, reduced cortisol, increased antioxidant potential, and increased melatonin.

That is, they recovered better.

If diaphragmatic breathing reduces these stress markers in this extreme case, it seems like it would be even more useful for recovering from chronic, everyday work stress. Recover better, work better.

2. How Do You Budget Your Breathing?

"Don’t tell me where your priorities are. Show me where you spend your money and I’ll tell you what they are."

- James W. Frick

The same can be said for your breathing. Where you spend your breath, and thus your energy, shows what your physiological priorities are. But, like money, you can set your own priorities by setting a breathing budget.

For example, suppose you would like to try out a new method that involves mouth breathing, but you also recognize the hazards of chronic mouth breathing. In that case, you might budget a small portion of breaths for that activity. Then, save the rest (especially sleep) for nasal breathing.

You can apply this idea to any technique. Make light nasal breathing the foundation of your budget (like paying your rent or mortgage) and spend your leftover "disposable breathing income" on new methods that interest you.

3. How Deep Breathing Opens Up the ADHD Brain

"So Ethan’s mother, who had used coherent breathing to calm her own anxiety, taught him how to do it. His overall behavior improved in four or five weeks, and he fell asleep without difficulty." - ADDitude Magazine

This topic is way outside my jurisdiction. But, reading this article was both inspiring and humbling as I reflected on how important this "breathing" stuff is.

I hope you enjoy it!

Thanks to great friend, and new 411 reader, S.S. for sending me this article.

4. Intermittent Hypoxia Improves Immune System Function

"These responses…may serve to augment the body’s immune defenses without exacerbating inflammation."

Serebrovskaya et al. 2011, High Altitude Medicine and Biology

This paper published in 2011 found that intermittent hypoxia (IH) enhances the body’s innate immune system, increases its ability to fight infection, and had a net anti-inflammatory effect.

Although IH and breath holds are not technically the same, we can experience IH using breath holds. Thus, research like this suggests, but doesn’t prove, that breath holds might help us fight illnesses (when done safely, of course).

 
 
 
 

1 QUOTE

"It is better to know some of the questions than all of the answers."

- James Thurber

 
 
 
 

1 ANSWER

Answer: The Earth has ~3.1 trillion of these organisms (or ~400 per person) that help us breathe.

…

(Cue the Jeopardy! music.)

…

Question: What are trees?

That link has a neat video of the Earth "breathing," if you’re interested.

In good breath,
Nick

P.S. "omg GO ON"

 
 

Stop Breathing Sugar

 

Happy Monday!

Let’s get right to it. Here are 4 thoughts, 1 quote, and 1 answer for this week.

 
 
 
 

4 THOUGHTS

1. Breathing is so Cliché

"Defense wins championships // The best defense is a good offense.

Birds of a feather flock together // Opposites attract.

You get what you pay for // The best things in life are free"

- Neil Pasricha, The Happiness Equation

For any situation you’re in, you can find a cliché to help you through. And as seen above, clichés are often contradictory. Likewise, breathing clichés are also contradictory, as we saw about a month ago:

Wim Hof tells you to breathe more. // Patrick McKeown tells you to breathe less.

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

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

For breathing, I suggested that we embrace these contradictions. But from a practical perspective, I like Neil Pasricha’s advice: "Any cliché, quote, or piece of advice that resonates with you only confirms to your mind something you already know."

We’re all different. So if you notice a specific breathing method standing out, it’s probably confirming something you already know to be right for you.

2. Stop Breathing Sugar

"Cutting sugar-sweetened beverages from your diet is the single-biggest thing you can do to improve your health."

- Mark Hyman, Food Fix

Many different diets work for many different people. But they all pretty much agree on one thing: remove processed sugar. And Mark Hyman’s number one recommendation is even more straightforward: "Don’t drink sugar."

Similarly, despite all the inconsistencies in breathing advice, there is one thing we can all agree on: don’t breathe through your mouth. Mouth breathing is like drinking sugar. It’s easy and it feels good, but it is detrimental to your health.

Let’s cut this processed "breathing sugar" from our diets. It may very well be the most important thing we can do for our health.

Thanks (for the millionth time) to Brian Johnson for inspiring this thought.

3. Nitric Oxide Reduces Alveolar Dead Space

"Alveolar dead space…represents alveoli, typically in the apex of the lung in an upright person, that do not receive blood flow"

- Respiratory Physiology, A Clinical Approach, pg. 96

By redistributing blood flow in the lungs, inhaled nasal nitric oxide reduces the alveolar dead space described above. Specifically, it allows more alveoli to receive blood flow, which allows more gas exchange to occur. This is something you won’t find in textbooks because the science is just too new.

This remarkable effect has led some to postulate that nasal nitric oxide is an evolutionary adaptation that helped allow us to walk upright. Pretty neat.

4. Slow Breathing is Better Than Social Media for Sleep

"Slow-paced breathing appears a promising cost-effective technique to improve subjective sleep quality and cardiovascular function during sleep in young healthy individuals."

- Journal of Clinical Medicine (2019)

This study found that 15 minutes of slow breathing (6 breaths/min) before bed led to better subjective sleep quality than 15 minutes of social media use. Slow breathing also led to higher overnight vagal activity.

Although these results might seem like common sense, I thought they were still compelling nonetheless. Here's to putting away our phones and focusing on our breath before bed.

 
 
 
 

1 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

 
 
 
 

1 ANSWER

Answer: This condition drops 21% two days after we gain an hour moving from Daylight Savings Time to Standard Time.

…

(Cue the Jeopardy! music.)

…

Question: What are heart attacks?

In good breath,
Nick

P.S. lmao ok fine.

 
 

The Simplest Way to Increase Nitric Oxide Through Nasal Breathing

 

Hello, and happy Monday. Here are 4 thoughts, 1 quote, and 1 answer (like "Jeopardy") related to breathing that I hope you enjoy.

 
 
 
 

4 THOUGHTS

1. Can Mouth Breathing Increase Nitric Oxide?

Yes, but only if done on the exhale.

Nitric oxide (NO) is continuously produced in the nasal cavity. When we inhale through the nose, we harness this wondrous molecule and its benefits in the airways and lungs.

But if we also exhale through our nose, some of it gets washed out. Conversely, if we exhale through our mouth, the NO continues to accumulate in the nasal cavity. Then, more is brought in with the next nasal inhale.

In through the nose, out through the mouth.

Here’s what a researcher at the UCLA School of Medicine says:

"Exhaling through the nose is highly wasteful in that the NO would be expelled away from the lungs, where it is needed most." - Louis J. Ignarro, Inhaled NO and COVID-19

While I personally don’t recommend exhaling through the mouth all the time, there are clearly times when it might be beneficial, even if only for short periods.

The next thought has a few ideas about putting this knowledge into practice.

2. Increase Oxygenation by 10% (without increasing carbon dioxide)

"The subject inhaled through the nose with the mouth closed and exhaled through the mouth with the nose blocked. Thereby, a maximum of NO from the nasal airways is inhaled while a minimum is lost during exhalation." - Lundberg et al. (1996)

This protocol, nose in - mouth out, led to a 10% increase in tissue oxygenation when compared with mouth in-nasal out.

Notably, there were no significant carbon dioxide changes between protocols. Thus, by inhaling through the nose and exhaling through the mouth, we can increase tissue oxygenation without increasing carbon dioxide.

It’s all due to nitric oxide.

We should not base all our breathing on any one conclusion. And many factors need to be weighed, such as moisture and heat loss from exhaling through the mouth. But these results are intriguing nonetheless.

Here’s a simple way I put them into practice: I start each slow breathing session with 3-5 nose in - mouth out breaths before switching to nose in - nose out.

This study also implies that nose in - mouth out could increase oxygenation to the working muscles during exercise. So, if you’re uncomfortable with nasal-only breathing during your workout, switching to nose in - mouth out could be a beneficial compromise from an oxygenation perspective.

3. Why Slowing Your Breathing Helps You Relax

"By repeatedly stimulating the vagus nerve during those long exhalations, slow breathing may shift the nervous system towards that more restful state, resulting in positive changes like a lower heart rate and lower blood pressure." (my emphasis)

- BBC, Why Slowing Your Breathing Helps You Relax

It’s always fun to find an article reporting the science behind slow breathing from a news outlet like BBC. They even present some information you might not have considered, like how taking "big breaths" might benefit relaxation.

The article also touches on everything from pain to arthritis and provides many useful references. It's an excellent summary. Enjoy!

Thanks to 411 reader A. P. for inspiring this thought.

4. What is Breathing? And is it Woo-Woo (part II)?

When I was drafting last week’s thought about breathing being woo-woo, my grammar editor said that I was using the word "breathe" too much. Almost ironically, the synonym it suggested was: live.

I thought, "funny that a word synonymous with life itself is often considered woo-woo." But at the same time, interchanging "breath" with "life" is borderline woo-woo : )

But this is an appropriate synonym. Because at its root, what is breathing? At the risk of sounding a bit woo-woo myself, here is one answer: breathing is living.

 
 
 
 

1 QUOTE

"For breath is life, and if you breathe well you will live long on the earth."

- Sanskrit Proverb

 
 
 
 

1 ANSWER

Answer: This is the lowest blood oxygen saturation recorded in a human climbing Mount Everest.

…

(Cue the Jeopardy music.)

…

Question: What is 34.4%?

Wim Hof

"Fainting is okay, it just means you went deep." – Wim Hof

Maybe Wim Hof has some crazy ideas, but he has done more for "breathing" than just about anyone on this planet. I am incredibly grateful for him and his work.

His new book comes out tomorrow. I ordered a copy and hope you will too.

In good breath,
Nick

P.S. We’ve Been Ordering Pizza All Wrong

 
 

The Breathing 4.1.1. - Breathing That Makes You Smarter

 

Happy Monday and welcome to another edition of "The Breathing 4.1.1."

Below, I share 4 thoughts, 1 quote, and 1 answer (think "Jeopardy"). Enjoy!

 
 
 
 

4 THOUGHTS

1. Why Increasing Your CO2 Tolerance Just Makes Sense

i. Carbon dioxide is your primary stimulus to breathe. When you feel breathless or air hunger, that is due to high levels of CO2, not low levels of oxygen.

ii. Carbon dioxide helps you use oxygen more efficiently via the Bohr effect.

Therefore, being able to tolerate more CO2 just makes sense. You’ll delay the onset of breathlessness while simultaneously improving oxygen delivery.

2. Should You Be Doing Breathing Exercises All Day?

Not in my opinion. The goal of all of this "breathing stuff" is to reset your breathing to healthy levels so you don’t have to think about it all the time.

3. Can Your Breathing Make You Smarter?

Nasal breathing synchronizes brainwave oscillations in the piriform cortex, amygdala, and hippocampus. This coherence improves cognitive function when compared to mouth breathing.

Read More: Nasal Breathing Synchronizes Brainwave Activity and Improves Cognitive Function

4. If You or Your Child Suffers from This Condition…

If you’re reading this, the adverse health effects of mouth breathing probably seem obvious to you by now. But maybe not everyone else.

That’s why it is always great to see an article about it in a more mainstream publication like ScienceDaily. The final paragraph is both wonderful and comical (without trying to be):

"At this time, many health care professionals are not aware of the health problems associated with mouth breathing. If you or your child suffers from this condition, speak with a health care professional who is knowledgeable about mouth breathing."

Read The Full Article on ScienceDaily:

"Mouth breathing can cause major health problems"

 
 
 
 

1 QUOTE

"We can’t learn how to breathe, but we can learn how to stop not breathing."

- Richard Rosen, The Yoga of Breath

 
 
 
 

1 ANSWER

Answer: The only human organs that can float in water.

…

(Cue the Jeopardy music.)

…

Question: What are the lungs?

In good breath,
Nick

P.S. Nostalgia.

 

Nasal Nitric Oxide is My New Favorite Gas

 
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The nose warms and humidifies incoming air. We’ve heard that a lot.

However, when you dig into the scientific literature, you learn that nitric oxide (NO) might outweigh all other aspects of nasal breathing. It’s actually hard to overstate the benefits of nasal NO.

Which brings us to this week’s paper:

Nasal Nitric Oxide in Man

- Published in Thorax in 1999 (Read Full Summary Here)

This was a great overview of the many functions of nasal NO. Here are a few of my favorites. Check out the full summary for more.

The general consensus is that NO is continuously released in the paranasal sinuses. Because of this continuous release, a lower flow rate will result in higher concentrations. This could be yet another benefit of slow breathing: Increased nitric oxide delivery to the lungs.

Another amazing benefit of nasal NO is that it increases arterial oxygenation. For example, one study showed that nasal breathing increased tissue oxygenation 10% more than mouth breathing.

Finally, and this was my favorite part, a study showed that breathing humidified air through the mouth did not increase oxygenation; however, breathing supplemental NO through the mouth increased oxygenation similar to what is seen in nose breathing.

Although the warming and moistening effects are important, this suggests that nitric oxide might explain many of the benefits of nasal breathing.

I am continually amazed by everything nitric oxide does in the body.  I think it’s my new favorite gas (never thought I’d have one of those!).

In good breath,
Nick

P.S. Who Needs Gas?.

Nasal Nitric Oxide: Our Body's Answer to Gravity?

 
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Gravity is pretty awesome. After all, it keeps us here on Earth. And when our bodies are not subject to gravity (say, if you’re an astronaut), some crazy things happen. For example,

  • Astronauts lose 25% of their aerobic capacity in 7-14 days (it usually takes 10 years to lose 10% here on Earth)

  • Bone density can decrease as fast as 5% a month (it’s usually about 1% a year on Earth)

Thus, our bodies are clearly meant to be under the influence of gravity. However, as we became upright mammals walking on two feet, gravity could have posed an issue.

Blood flow in our lungs is influenced by several factors, but one of the largest is gravity. Gravity acts to focus blood toward the base of the lungs.

Interestingly, in humans and other primates, the nasal airways produce a considerable amount of nitric oxide (NO). As we’ve learned before, NO is a potent vasodilator that is critical for whole-body oxygenation.

Maybe the NO produced in the nasal airways is an adaptation to walking upright and helps counter gravity’s effects on blood flow? That was the hypothesis of the study I’m sharing this week.

Nasal Nitric Oxide: Nature’s Answer to Gravity?

(Read Full Summary Here)

This research found that when participants breathed through their noses, blood flow in the lungs became more uniform and gas exchange was increased. Breathing through the mouth did not have these effects.

However, if subjects breathed through their mouths but were given supplemental NO, the blood flow in their lungs looked similar to nasal breathing.

This suggests that NO is responsible for making blood flow more uniform in the lungs.

The authors hypothesize that nasal NO might be an evolutionary adaptation to counter the effects of gravity on lung blood flow, allowing greater and more efficient gas exchange to occur.

We often praise nasal breathing for its warming and humidifying effects. But the more I learn, the more convinced I am that nitric oxide is the real hero.

In good breath,
Nick

P.S. Happy New Years Dance!