blood oxygen saturation

How I Trained for Altitude and Why We All Benefit from Breath Training

 
 

Listen Instead of Reading


 

Autonomic Neuroscience says slow breathing is for diabetes & hypertension.

Harvard Medical School says yogic breathing is for stress.

And Tibetan Yoga says breath training is for everyone.

Let’s see how…

 
 

 
 

4 Thoughts


1. How I Trained for High Altitude (it’s not what you might think)

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.

- How I Trained for High Altitude Blog Post

This one was slightly too long to fit in as a “Thought,” so I made it a really short blog post.

Give it a read to learn my somewhat odd training method for my recent hike up to 13,200 feet…and to see if it actually worked (pictures included).

Please respond to this email if you have any thoughts on my reasoning…it was my first time at altitude, so I’d appreciate any feedback or thoughts you have.

***

Related: How To Breathe To Live Longer

2. Slow Breathing for Diabetes and High Blood Pressure

Even in already well controlled diabetic patients, guided breathing had beneficial influences on cardiovascular autonomic control and a measurable impact on BP control.  It enriches available options for non-pharmacological blood pressure…reduction.

- Effects Of Guided Breathing On Blood Pressure And Heart Rate Variability In Hypertensive Diabetic Patients

According to Johns Hopkins, approximately two-thirds of adult diabetics have high blood pressure or take medication for it. And people with diabetes and hypertension are 4x more likely to develop heart disease.

Fortunately, this study found that just 12 minutes a day of slow breathing (with no changes to medication) led to significantly lower blood pressure, increased heart rate variability, and a reduced spontaneous breathing rate (indicating reduced sympathetic arousal).

All of which led to this remarkable final statement: “If consistently used, guided breathing enhances restoration of physiological autonomic balance in patients with diabetes and hypertension.” Amen 🙏

Here’s to controlling our breath to control of our blood pressure, today.

3. Harvard Medical School: “Yogic Breathing Improved University Students' Response to Stress”

When we anticipate a stressful situation, our breathing and heart rates naturally go up…but the yogic breathing group seemed to show protection against that type of stress. Their heart rate increased only slightly when they knew a stressful situation was coming.

- Yogic breathing improved university students' response to stress

Enjoy this excellent and quick write-up showing that yogic SKY breathing can significantly reduce the stress response. It’s from the Beth Israel Deaconess Medical Center, a world-class teaching hospital of Harvard Medical School.

The next thought builds off of this idea of “protection against stress”…

4. What Turbulence Can Teach Us About Breathing

When you’re flying and hit turbulence, you’re told to put on your seatbelt.

It’s reactive.

It’s similar to when turbulence hits in our lives. We react. We start eating healthy or meditating or exercising more.

But a regular breathing practice is proactive.

It helps you avoid turbulence altogether.

Or, if you can’t avoid the turbulence, it’s like your seatbelt. You’re already fastened in. You don’t need to rush back to your seat. You’re ready.

 
 

 
 

1 Quote

“Because the breath is such an excellent and abundant support for life and vitality for every being on the planet, everyone can benefit from training in the breath.”

The Tibetan Yoga of Breath

 
 

 
 

1 Answer

Category: Hypoxia and Red Blood Cells

Answer: During hypoxia, this organ releases additional red blood cells to increase your oxygen carrying capacity.

(Cue the Jeopardy! music.)

Question: What is the spleen?


In good breath,

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

P.S. “sorry, it’s my first day!”

 
 
 

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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“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 Modern Science Supports Ancient Yoga, plus Comfort in Breathwalking

 
 

Listen Instead of Reading


 

The way you breathe might affect your insulin sensitivity. And the way you walk definitely affects your ability to withstand discomfort.

Let’s find out how…

 
 

 
 

4 Thoughts


1. Longer Exhalations are Naturally Relaxing

It's helpful to extend your exhalations because the ‘rest and digest’ parasympathetic nervous system handles exhaling while also slowing your heart rate. So, longer exhalations are naturally relaxing.

- Rick Hanson, Ph.D., Neurodharma

Just a friendly reminder that extending the exhalation is one of the fastest ways to naturally relax. That is all : )

***

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

Related: BBC: Why slowing your breathing helps you relax

2. How Breathing Might Help with Insulin Sensitivity

These observations demonstrate that hypoxia rapidly regulated the inhibition of the insulin signaling pathway […] During reoxygenation, the ability of insulin to stimulate phosphorylation of insulin receptor and signaling proteins was restored after 45 min.

Hypoxia Decreases Insulin Signaling Pathways in Adipocytes

Insulin resistance is a critical factor in diabetes and overall metabolic health. In this paper, we learn that low tissue oxygen (hypoxia) can trigger insulin resistance. Encouragingly, however, reoxygenation restored it.

This is one reason why optimal breathing is so essential for metabolic health, especially for people with diabetes. By practicing slow nasal breathing, we increase our blood and tissue oxygenation. This could potentially maintain, or even restore, insulin sensitivity.

Of course, there is no research showing that slow nasal breathing does this—no one is going to fund that study : ) But, given what we know about slow breathing, tissue oxygenation, and blood flow, it seems reasonable to hypothesize that it would help. I know have certainly noticed a difference.

***

Related: The Lesser-Known Benefits of Nasal Breathing, Designed for Diabetes

3. “Role of respiration in mind-body practices: concepts from contemporary science and traditional yoga texts”

Traditional yoga texts also suggest a solution for the imbalance in prana, through slow, deep breathing. … The beneficial effects of deep breathing are supported by contemporary science.

- Telles et al. (2014), Frontiers in Psychiatry

I’ve shared a quote from this paper before, but if you haven’t read the full thing, it’s well worth it. It describes how modern science supports ancient yogic breathing, for example, how “Conventional physiology has found benefits of deep breathing supporting the importance given to regulating the breath in yoga.

Another interesting idea they mention is that breathing “acts as both a top-down and bottom-up mind-body practice.” It makes perfect sense, but I hadn’t thought about it that way.

Ancient Yogic Wisdom + Modern Science = A Fantastic Read

Enjoy!

4. Finding Comfort in Breathwalking

To take my mind off the discomfort, I settle into a respiratory rhythm. I take one step as I breathe in, then two steps as I breathe out. One step breathing in, two steps breathing out. Over and over, focusing only on the breath.

- Michael Easter, The Comfort Crisis

Easter spent more than a month in a remote region of Alaska. And this book that came out of it is incredible—a perfect blend of science and storytelling.

Of course, this part stood out to me : )

Easter is making a ridiculous walk back to camp with a ton of weight. He naturally settles into his breath, and this gives him comfort and endurance.

As he puts it, “There's science behind this. Brazilian researchers found that people who are able to detach from their emotions during exercise, for example, not thinking about or putting a negative valence on their burning legs and lungs, almost always perform better.

So aside from the mechanics and oxygenation, here’s another way in which breathwalking can be beneficial. It helps you detach from your emotions. As Easter tells us, you’ll “almost always perform better.” Sounds good to me.

***

Related: Breathwalking with Gandhi

 
 

 
 

1 Quote

“He let me see that, because the breath is so unassuming, I had been undervaluing it. I was looking for a complicated path to enlightenment, when this simple one was right before me.”

- Larry Rosenberg, Breath by Breath

 
 

 
 

1 Answer

Category: Hypoxia

Answer: A blood oxygen saturation below approximately this value is considered hypoxic.

(Cue the Jeopardy! music.)

Question: What is 90%?

P.S. Different places give slightly different numbers…sometimes it’s 94%, sometimes 92%.


In good breath,

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

P.S. What if?

 
 
 

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.