03-A- Physiology (Vasodilation-Vasoconstriction and Breathing Patterns)

Vasodilation-vasoconstriction is often the same as health-disease or relaxation-spasm. Definition: Vasodilation means expansion of blood vessels for better blood supply in the human body due to vasodilators. Carbon dioxide is the most potent know vasodilator.

Vasoconstriction is their spasm. Dr. Buteyko studies these ideas in detail. Nitric oxide is another powerful vasodilator. Hence, importance of nose breathing since some nitric oxide is generated in sinuses (nasal nitric oxide).

Carbon dioxide is not a waste toxic gas that we expel during our breathing, as many ordinary people believe these days. Medical doctors and health professionals, together with physiologists have conclusively proven that carbon dioxide performs numerous useful functions in the human body. It dilates blood vessels. This video focuses on this vasodilatory property of carbon dioxide.

Vasodilation improves perfusion of all vital organs, as medical studies found. Dr. Buteyko (the creator of the Buteyko method) discovered poor perfusion in the sick due to low CO2 since hypocapnia acts as other vasoconstrictors.

What is the physiological mechanism of the reduced perfusion of vital organs? Arteries and arterioles (smaller blood vessels) have smooth muscles around them. These muscles can constrict or dilate (vasodilation) depending on CO2 concentrations.

When the breathe more air at rest, CO2 level becomes smaller, and we experience spasm of blood vessels leading to all vital organs (like the heart, brain, kidneys, stomach, spleen, colon, liver, etc.). As a result, we get reduced blood and oxygen supply.

Similarly, low CO2 causes spasms of all other smooth muscles of the human body, such as airways (bronchi and bronchioles - bronchospasm), diaphragm, colon (constipation), bile ducts, etc.

Hence, the CO2 vasodilation effect explains why sick people have less blood going to their vital organs, like the brain, heart, liver, and others.

Normal breathing (but very few people have normal breathing these days) provides people with normal perfusion and oxygen supply for all cells. To achieve normal breathing is the goal of the Buteyko method and Oxygen Remedy.

You can find all quoted medical studies (and dozens more) on this web page about CO2 vasodilation:
http://www.normalbreathing.com/CO2-vasodilation.php
and on this page about most potent natural vasodilators: http://www.normalbreathing.com/c/vasodilators.php

This page has links to great resources about the Buteyko method:
http://www.normalbreathing.com/buteyko.php

NormalBreathing.com has hundreds of medical references; graphs and charts; tables; analysis of numerous respiratory techniques, the Oxygen Remedy included; results of clinical trials; free breathing exercises, lifestyle modules; manuals and techniques; and more resources to boost cell and body oxygen levels and improve health.

Category:

Howto & Style

Tags:

• vasodilation
• buteyko
• co2
• blood
• cell
• vessel
• control
• breathing
• o2
• health
• vasoconstriction
• spasm
• oxygen
• perfusion
• carbon dioxide

[donbarron69]

Does the Buteyko method reduce the resting pulse rate?

[artour2006]

@donbarron69

You can find exact details from the Buteyko Table of Health Zones

[fuzzymike2]

Every asthmatic should watch this brief introduction to the physiology of breathing, it could be life saving.

[surfinthetao]

Thanks for the explanation!

[Itzanisa]

thanks

this was sooo helpful to understand for physiology exam