Conscious Breathing

Conscious Breathing 🌬️ Breathe your way to better health and performance.

Discover the power of Conscious Breathing and CO2 Therapy and how it can enhance your physical, mental, and emotional health and well-being—visit our website for more! Discover the power of Conscious Breathing and how it can improve your physical, mental, and emotional health and wellbeing—visit our website for more!

Athletes chase oxygen. But your blood is already close to full, and what decides whether it reaches your muscles is CO₂....
06/09/2026

Athletes chase oxygen. But your blood is already close to full, and what decides whether it reaches your muscles is CO₂.

CO₂ widens your blood vessels, so more blood reaches working tissue. It's also what tells your hemoglobin to release the oxygen it's carrying into the muscles that need it, instead of holding onto it.

Building your CO₂ tolerance takes weeks. Twenty-one rugby players spent four weeks training with restricted breathing, and by the end could hold their sprint speed roughly 64% longer before fatigue caught up.

Recovery works the same way. Young athletes doing four weeks of slow breathing after weightlifting improved their resting parasympathetic activity, the system that handles repair, more than those doing active recovery.

Neither group got faster over a single sprint. What improved was how long they could hold their pace before fatigue set in, and how well they recovered in between.

Thank you for reading this far. Sources below. Searchable by name, PMID, or DOI:
-2018: "Repeated-sprint training in hypoxia induced by voluntary hypoventilation improves running repeated-sprint ability in rugby players" (Fornasier-Santos et al.), PMID 29400616

-2026: "Four weeks of slow-pace breathing during recovery from weightlifting workout improves resting heart rate variability in young baseball players," DOI 10.1016/j.scispo.2025.10.001

-2025: "Box breathing or six breaths per minute: Which strategy improves athletes post-HIIT cardiovascular recovery?" (Kasap et al.), DOI 10.1371/journal.pone.0336615

Most people think breathing is when they move air in and out of their lungs. But that's not breathing. That's ventilatio...
05/09/2026

Most people think breathing is when they move air in and out of their lungs. But that's not breathing. That's ventilation: a mechanical process that gets air from outside your body into your lungs, nothing more than air traveling a path.

Real breathing happens somewhere your eyes can't see.

Your lungs don't use the oxygen you inhale. They're simply a bridge that transfers the oxygen into your blood, which carries it to where it's actually needed. Your cells.

Every cell in your body needs oxygen to produce the energy that fuels everything you do: moving, thinking, healing, existing. Without it reaching your cells, none of that happens, no matter how much air you're pulling into your lungs.

This is what breathing actually is. The moment oxygen is used at a cellular level to keep you alive and moving, that's breathing. And it doesn't end there.

As your cells use oxygen to break down fuel like glucose and fat for energy, they release CO₂, creating a signal that tells your blood exactly where oxygen is being used and where more is needed, so your body can direct resources where they're needed most, rather than sending them to muscles and organs that need less energy right now.

After releasing the oxygen where it's needed, your blood picks up that CO₂ and carries it back to your lungs, where it's finally exhaled, completing a loop your body repeats every second, in every cell, without you ever having to think about it.

Your sinuses aren't just producing nitric oxide, they're producing a molecule that attacks pathogens at the cellular lev...
03/09/2026

Your sinuses aren't just producing nitric oxide, they're producing a molecule that attacks pathogens at the cellular level, in several different ways at once.

Against bacteria and fungi, nitric oxide interferes directly with the enzymes they need to breathe and reproduce, essentially shutting down their cellular machinery from the inside. Against viruses, it works differently: nitric oxide modifies the proteins a virus needs to replicate, disrupting its structure enough that it can no longer function or spread, even before your immune system gets involved.

That's not a side effect of nasal breathing. It's a dedicated defense system, running continuously, that most people never learn they have.

Save this if you didn't know your nose was doing this much.

Love that you read this far. Sources below, searchable by name or PMID at pubmed.gov:
Sources:
-1995: "High nitric oxide production in human paranasal sinuses" (Lundberg et al.), PMID 7585069
-1996: "Inhalation of nasally derived nitric oxide modulates pulmonary function in humans" (Lundberg et al.), PMID 8971255
-2008: "Nitric oxide and the paranasal sinuses" (Lundberg), PMID 18951492

Your body has a setting it only uses in water.In 1963, physiologist Per Scholander described a natural defense against a...
01/09/2026

Your body has a setting it only uses in water.

In 1963, physiologist Per Scholander described a natural defense against asphyxia found across vertebrate animals, triggered the moment the face enters cold water. He called it the Master Switch of Life, but his research was mostly in the lab.

Erika Schagatay, a Swedish physiologist, took it into the real world, studying the Ama divers of Japan and the sea nomads of Southeast Asia. Her work showed the reflex can be trained.

When it activates, the spleen releases stored red blood cells, and she measured how much that extends the time a diver can stay underwater on a single breath. Scholander saw a reflex. Erika found a trainable mechanism.

It isn't something we developed. It's inherited, which is why we share it with seals, dolphins and whales; they run the same machinery, only far better.

Save this post if you learned something new.

Sources below. Searchable by name or PMID at pubmed.gov:
-1968: "Pulmonary and circulatory adjustments determining the limits of depths in breathhold diving" (Schaefer et al.), PMID 5725383
-2000: "Effects of physical and apnea training on apneic time and the diving response in humans" (Schagatay et al.), PMID 10929209
-2001: "Selected contribution: role of spleen emptying in prolonging apneas in humans" (Schagatay et al.), J Appl Physiol 90(4):1623-9
-2014: "Deep: Freediving, Renegade Science, and What the Ocean Tells Us About Ourselves" (Nestor)

Most of your body's automatic functions, heart rate, digestion, body temperature, run outside your control.Breathing is ...
30/08/2026

Most of your body's automatic functions, heart rate, digestion, body temperature, run outside your control.

Breathing is different. It happens on its own, but you can take conscious control of it anytime.

That difference matters. Fast, shallow breathing doesn't just follow stress, it triggers your fight-or-flight response, even without a real threat, raising your heart rate. And the opposite is also true: slow your breathing and prolong your exhale, and you can consciously bring your heart rate back down by stimulating your vagus nerve.

This isn't limited to moments of tension. Even at rest, your heart rate rises slightly with every inhale and falls with every exhale, a pattern called respiratory sinus arrhythmia. Your breath and heart are wired together, breath by breath, every day.

A 2021 study found that just one 5-minute session of slow breathing with a longer exhale measurably increased vagal activity and reduced anxiety, in both younger and older adults.

Your breath is the one system in your body you have agency over. Use it.

Love that you read this far. Sources below, searchable by name or PMID at pubmed.gov:
Sources:

-2021: "Benefits from one session of deep and slow breathing on vagal tone and anxiety in young and older adults" (Magnon et al.), PMID 34588511

buteykomethod

Children breathe through their mouths for good reasons. A cold, allergies, enlarged tonsils. The problem is that the rea...
29/08/2026

Children breathe through their mouths for good reasons. A cold, allergies, enlarged tonsils. The problem is that the reason resolves, and the habit doesn't.

In one study, researchers 3D-scanned the faces of 4,784 fifteen-year-olds. Those whose parents had reported snoring or mouth breathing since infancy had longer faces, jaws sitting further back, and altered nasal dimensions.

And it starts earlier than that. In a cross-sectional study of 1,616 children aged 3 to 6, mouth breathing was linked to open bite, crossbite, and teeth pushed forward.

One quick test at home: ask your child to drink a glass of water. If it swirls around the mouth before going down, the tongue and lips are working harder than they should.

Read "Mouth breathing negatively affects children's smile, teeth, face and airways" in our CO2 Academy. Link in bio.

Thank you for reading this far. Find the sources below, searchable by name or PMID at pubmed.gov:

2010: "The effect of mouth breathing versus nasal breathing on dentofacial and craniofacial development in orthodontic patients," Harari et al., PMID 20824738

2015: "The influence of snoring, mouth breathing and apnoea on facial morphology in late childhood: a three-dimensional study," Al Ali et al., PMID 26351193

2022: "The impact of mouth breathing on dentofacial development: A concise review," Lin et al., PMID 36159237

2026: "Mouth Breathing and Craniofacial Development in Children: A Systematic Narrative Review and Clinical Implications," Grande et al., PMID 42354595

27/08/2026

Your stress response was built to keep you alive in the middle of the savanna, not to answer emails and texts sitting in your chair.

Our founder, Anders Olsson, explains the mismatch. A thousand years ago, danger was obvious, and so was the moment it passed. You saw the threat, your body engaged the fight or flight response, flooding you with energy to either fight or run, and once it was over, it calmed down on its own.

Today the tiger looks like an email, a meeting, or a conversation that feels difficult to have. Same physical response, tense muscles, a rush of adrenaline, a faster heart rate, shallow breathing, but no physical activity to burn that energy and no clear moment when the danger ends. So your body just stays there, accumulating stress without ever winding down.

Almost everything in that stress response runs on autopilot, except your breathing. That's the one function you can consciously control and change anytime.

Start small. Just three to five minutes of low, slow, and rhythmic breathing, calm and relaxed, through your nose, is enough to begin shifting that pattern.

The easiest way in: close your mouth, rest your tongue on the roof of your mouth, and simply prolong your exhale. See how a small change like that can put the brakes on a stress response that never got the memo to stop.

Want a simple place to start? Try the three free inXhale exercises. Link in bio.

When your airways narrow, breathing gets inefficient. So you breathe faster to compensate. That drops your CO₂, which na...
25/08/2026

When your airways narrow, breathing gets inefficient. So you breathe faster to compensate. That drops your CO₂, which narrows the airways further.

The instinct that feels like it should help is the one feeding the loop.

This is research, not medical advice. If you have a respiratory condition, bring it to your doctor.

Try three inXhale exercises today for free. Link in bio.

Sources below. Searchable by name, PMID, or DOI:
-1968: "Arterial-blood gas tension in asthma" (McFadden & Lyons), N Engl J Med 278(19):1027-32
-2014: "Controlling Asthma by Training of Capnometry-Assisted Hypoventilation (CATCH) vs Slow Breathing: A Randomized Controlled Trial" (Ritz et al.), DOI 10.1378/chest.14-0665

This is one of our founder Anders Olsson's favorite ways to explain it: your body is like a car, more fuel doesn't mean ...
23/08/2026

This is one of our founder Anders Olsson's favorite ways to explain it: your body is like a car, more fuel doesn't mean better performance.

Overbreathing doesn't give you more oxygen. At rest, your blood is already close to fully saturated. What overbreathing actually does is blow off CO₂, and that's where performance suffers. CO₂ is what allows oxygen to release from your blood into your muscles and cells, a process called the Bohr effect. Too little of it, and oxygen stays locked onto your blood instead of reaching the tissues that actually need it.

CO₂ protects you in another way too, the same way rust forms on metal or a cut apple browns when exposed to air, oxidation happens inside your body. Losing CO₂ leaves your cells more exposed to that same oxidative damage.

More oxygen was never the goal. The right balance was.

Your breathing changes the biochemistry of your body. That sounds like an overstatement until you look at the numbers.Wh...
23/08/2026

Your breathing changes the biochemistry of your body. That sounds like an overstatement until you look at the numbers.

While hyperventilating with normal air, the medical students experienced an increase of 360% in adrenaline and 151% in noradrenaline. When breathing CO₂-enriched air, adrenaline and noradrenaline remained unchanged.

That's the part that matters: the CO₂ drop wasn't just raising platelet levels, it was triggering the same chemistry your body uses under stress.

Read more of the science in our CO2 Academy. Link in bio.

Sources below. Searchable by name or DOI:
-1994: "Hyperventilation-induced changes of blood cell counts depend on hypocapnia" (Stäubli et al.), DOI 10.1007/BF00865403

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