Myths about Breathing. How to Get More Oxygen, and Over Oxygenation
Myth #1. Breathing is regulated by want for oxygen
If you open any medical or physiological textbook to the section describing
the factors controlling respiration, you will find that under normal
conditions, breathing is regulated by the CO2 concentration in the
arterial blood and the brain. Whatever we do (sit, walk, eat, run,
sleep, etc.), arterial CO2 concentration is kept within a narrow range (0.1%
accuracy) by the breathing centre located in the medulla oblongata of
Myth #2. CO2 is a poisonous or toxic waste gas and a waste product to get rid off
When a healthy person tries to hyperventilate or is forced to breathe
deeply and fast, they experience “hypocapnia” (CO2 deficiency) in the
blood and other fluids, tissues, and cells. The real immediate effects are:
constriction of blood vessels (CO2 is a powerful vasodilator) and
reduced blood and oxygen supply to the brain, heart and all other vital
organs. This is the reason why it is so easy to faint or pass out after
2-3 minutes of forceful hyperventilation. Another CO2 effect is the suppressed
Bohr effect or diminished release of oxygen
the blood in the tissues due to the same hypocapnia. Apart from these phenomena,
there are many other vital functions of CO2 in the human body (see links to
medical studies below). Meanwhile, reduced tissue oxygenation is sufficient to
promote cancer, heart disease, diabetes and many other chronic conditions.
Myth #3. When a person is healthy, they can feel how they breathe
If people with normal breathing are asked what they feel about their
breathing, they will say that they feel nothing at all (as if they are
“The perfect man breathes as if he is not breathing”
Lao-Tzu, circa 4th century BC.
Indeed, if you have any healthy people
around you and observe their breathing for 20-30 seconds, you will see
and hear nothing. The medical norm for breathing is tiny. It is only 6 L/min or
only 12 breaths/min with tiny 500 mL for
one breath, while most modern people have about 700 mL. They are deep breathers.
Myth #4. My breathing is OK and I know how to breathe
Less than 10% of people have normal breathing parameters and body
oxygen stores these days. While breathing 2-3 times more than the norm, most
people believe that they are "barely breathing", as in a popular music album.
You can check the Homepage for 24 medical and
physiological respiratory studies done on ordinary or normal subjects during last
It is a fact that the medical norm established about a century
ago is not the norm anymore. Modern people breathe about two times more air
than we did 100 years ago. Hyperventilation results in tissue hypoxia
and many other biochemical abnormalities. Your
breathing is normal, if and only if you have normal body oxygenation.
How can you check it? You should be able to easily hold your breath for
at least 40 s after your usual exhalation and with no stress at the end
of the test.
Myth about deep breathing and over oxygenation
Myth #5. If I hyperventilate, I ll pass out due to over oxygenation
During miniscule normal breathing, oxygenation of the arterial blood
is about 98-99%. Over oxygenation,
while breathing normal air, is impossible. (Blood over oxygenation is
possible with breathing pure oxygen or hyperbatic breathing 100% pure
oxygen. However, these methods increase blood oxygenation to only a
small degree: about several per cent.) Note that normal
breathing is invisible and inaudible. It is
so light that most people do not feel it.
As a result, breathing more air cannot get much more oxygen in the blood.
It follows that, no matter how deep and fast one breathes, he or she cannot
get over oxygenated blood using normal air, while pure oxygen is toxic for
the lungs tissue.
Hundreds of published studies have clearly shown that hyperventilation
(or breathing more than the tiny medical norm) REDUCES oxygen supply to
the brain, heart, liver, kidneys, and all other vital organs due to losses in
(There are hundreds of studies presented on this website that proved this fact.)
You can pass out, due to hyperventilation, because of too low brain oxygenation (see the brain image above).
Nevertheless, on TV, radio, and in everyday life situations, people who
have little knowledge of physiology say, “Take a deep breath, get more
oxygen”, or “Breathe deeper for better oxygenation”, "Over breathing is good" etc.
Myth #6. Sick people notice when their breathing becomes abnormal
100% prevalence of hyperventilation at rest for the sick people is confirmed by over
40 published western studies (see the Homepage of this site). These sick patients
breathe about 2-3 times more than the norm (see this Table with
Minute Ventilation Rates for Chronic Diseases), and usually do not complain
or even notice that their breathing is heavy or too deep. Why? This is because
air is weightless and the main breathing muscles (diaphragm and chest) are very
powerful: we can pump 25 times more air during maximum exercise (or about 150
liters of air in one minute), than we require for normal breathing at rest (only
about 6 L/min). People may notice that their breathing is heavy during heart
attacks, stroke, asthma attacks, or morning hyperventilation (between 4 and 7
am), when they breathe 4-5 times more than normal.
The top illusion of yoga and meditation teachers
After speaking with numerous yoga teachers and meditation-mindfulness instructors, as well as analyzing their approaches and vision of breathing, I found that there is one illusion that is common for over 90% of these people. You can find out their illusion as your bonus content
Further Resources: Deep breathing
myth and carbon dioxide uses in the human body.
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