The Best Natural Muscle Relaxant: CO2

Effects of heavy breathing on brain circulation and oxygenation Carbon dioxide (CO2) is a potent natural muscle relaxant. It is also among the strongest and best muscle relaxers as well. Once people have normal CO2 in their cells, they do not need over the counter muscle relaxers to redice pain due to arthritis and other pain types (back, spine, or neck).

When a person has normal breathing parameters, he or she effortlessly maintains correct posture with a straight spine with all body muscles relaxed. There are no signs of stress in their gait or during physical exercise. In addition, the brain, muscles and other tissues get normal oxygen supply.

What happens with muscles and posture in modern people?

Hyperventilation prevalence graph

Man with naturally relaxed musclesMan with tense musclesSince ordinary modern people breathe about twice more than the medical norm, they suffer from effects of chronic CO2 deficiency (hypocapnia), which makes muscle cells tense and irritable. Therefore, most people lack this crucial muscle relaxant.

Dozens of studies pointed out adverse effects of low CO2 levels on muscle cells. In his research review paper, "Physiological effects of hyperventilation" Dr. Brown analyzed almost 300 clinical studies. He wrote, “Studies designed to determine the effects produced by hyperventilation on nerve and muscle have been consistent in their finding on increased irritability” (Brown, 1953).

Normal carbon dioxide concentrations restore the harmonious work of different muscular groups, such as all smooth muscles of arteries and arterioles and bronchi with bronchioles, the heart, muscles of the digestive tract, and so forth. This helps to get rid of spasms (e.g., heart attacks, asthma attacks, constipation, etc.) and other problems with muscles.

How to relax muscles with the best natural muscle relaxant

In order to relieve muscular tension permanently and have normal levels of this natural muscle relaxant, it is necessary to normalize one's breathing pattern 24/7. One does not need over the counter muscle relaxers. Slowing down one breathing back to the medical norm is possible by addressing lifestyle factors and those breathing techniques that make breathing lighter and slower so that we have larger carbon dioxide and oxygen concentrations in body cells. Hence, the treatment should include breathing retraining exercises (e.g., Amazing DIY device, Buteyko breathing therapy, and/or Frolov respiratory device) and correction of lifestyle risk factors.

Be observant. Watching TV, what can you say about the breathing of people who are violent or angry? What can you say about breathing of people who are relaxed?

For clinical studies with abstracts related to potent CO2 effects, click here: muscle relaxers.


Brown E, Physiological effects of hyperventilation, Physiological Reviews 1953 Oct; 33 (4): p. 445-471.

Hurlock OT, Muscle blood flow, 1973; Swets&Zeitlinger, Amsterdam.

Lamont A, Roberts M, McLeod L, Hypocarbia [CO2 deficiency] and muscle relaxant plasma levels, Anaesthesia and Intensive Care, 1987 Aug; 15(3): p. 354-355.

* Illustrations by Victor Lunn-Rockliffe

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