Chronic Hyperventilation: Hypocapnia and Psychophysiological Dysregulation
Received Date: Oct 20, 2018 / Accepted Date: Nov 15, 2018 / Published Date: Nov 21, 2018
Keywords: Anxiety; Hyperventilation; Carbon dioxide; Breathing therapy
Dysfunctional breathing/hyperventilation syndrome (DB/HVS) is a breathing problem that involves breathing too deeply and/or too rapidly (hyperventilation) .
Hyperventilation is the result of an increase in minute ventilation, when carbon dioxide, as a volatile acid, is blown off quickly causing a decrease in alveolar concentration below its normal levels .
Hypocapnia is a condition of reduced blood carbon dioxide concentrations. Then anxiety can manifest as a consequence of cerebral vasoconstriction. As a result of a rise in pH of the blood, there is also an increase in neuromuscular irritability .
As a result of metabolic processes, our body produces H+ ions on a daily basis, which, in turn, decreases the pH of the blood. Since body always tries to maintain acid-base balance within narrow limits, any fluctuations beyond this range may cause harmful effects . Carbon dioxide is a guardian of the pH of the blood, which is essential for survival .
Hyperventilation removes too much CO2, raising the blood pH above normal, and causes physical symptoms . Most people have experienced short episodes of acute over breathing during stressful or frightening events . The hyperventilation syndrome is usually easily recognized when it follows an acute form. It is often overlooked, however, when it follows a chronic and insidious course .
Hyperventilation and Anxiety—A Vicious Cycle
The concept of hyperventilation and the principle of a vicious circle provide an elegant explanation for the development of a wide range of somatic and psychological symptoms . Anxiety encourages overbreathing and over-breathing encourages anxiety .
According to a recent study of Finnish scientists from the Laboratory of Neurology of the University of Joensuu, hyperventilation "leads to spontaneous and asynchronous firing of cortical neurons" (Huttunen et. al, 1999) .
Hyperventilation has been linked to emotional distress in adults . Anxiety disorder can have a profound negative impact on those who experience it. It can also have a negative impact on loved ones and colleagues – people who are close to and/or work with someone who is experiencing anxiety disorders .
As we are living in the age of anxiety. Mental health problems including anxiety is rampant in the modern society . According to one estimate about 18 per cent Americans are suffering from mental and emotional stress. Even more important, patients complain that their problem is often overlooked by the public and main stream health professionals alike .
It is therefore really important for anyone supporting a sufferer of an anxiety disorder to seek appropriate help and also to gain as much information as possible about anxiety disorders .
• Anxiety, feeling of panic
• Numbness and tingling (paresthesias)
• Musculoskeletal pains
• Weakness, exhaustion
Magnitude of the Problem
Various clinical trials have been conducted to know the prevalence of hyperventilation in the subjects that are found to be normal according to the medical norms. These studies show that about 90 per cent of the normal population in the contemporary societies, people are hyperventilators. Therefore, it could be concluded that hypocapnia (decreased blood carbon dioxide concentration) is quite prevalent among the modern living people” .
“Since the diagnosis of hyperventilation in people who do not show any organic cause, is very difficult. Once definitive diagnosis is made, it is possible to treat the majority of these patients with the help of both the drugs and simple therapeutic exercises” .
Good news is that controlling the breath is an effective measure to counteract the ill effects of hyperventilation in patients suffering from anxiety attacks .
Many Benefits of the Therapeutic Increase of CO2
Carbon dioxide is essential for life and health. Its lack or deficiency is of itself a starting point for different disturbances in the body. Carbon dioxide should be maintained at an optimum level in the blood. Most doctors have never heard of carbon dioxide therapy. Yoga or deep breathing exercises actually increase CO2 levels and this is good .
Low carbon dioxide causes stress on all the body's organ systems--"The theory of life, in brief, is such that carbon dioxide acts as the regulator of all functions in the organism, it maintains the internal environment of the organism .
Since the partial pressure of oxygen in the alveoli is dependent on the carbon dioxide concentration of blood and lungs. Hence optimum levels of carbon dioxide in the blood and alveolar air is a precondition for proper gas exchange and normal health. There are many benefits of carbon dioxide are as follows: [12,19,23].
• Since therapeutic increase of carbon dioxide dilates the capillaries and decreases the pH of the blood. Both of these effects increase the bio-availability of oxygen to the tissues.
• Because of the narcotic effect of carbon dioxide, it decreases the excitability of nerves and muscles resulting into a calming effect on the body and the mind.
• Carbon dioxide dilates bronchi and bronchioles.
• Carbon dioxide is the main controller of the acid-base balance of the blood and body fluids.
• Carbon dioxide is not always a final waste product. It may be utilized, as a nutrient, in the molecular building of the material
In conclusion, carbon dioxide brings favorable effects on the body and the mind by its tonic influence over the nerves, respiration, and cardiovascular system .
Breathing Therapy: Chronic Hyperventilation
The emotional stress and hyperventilation is frequently accompanied by specific physical symptoms. Mild form of psychosomatic illness is overlooked by society. Problem is that the sufferers recurrently seek medical advice without a satisfactory outcome. And thus the healthcare system is overburdened.” Yogic breathing exercises have long been practiced for rehabilitation and prevention of illnesses. It has been claimed that the practice of yoga can heal any disease condition, provided that we practice it regularly .
Breathing therapy generally aims to either correct dysfunctions of breathing or enhance its functions. Breathing, unlike most physiological functions, can be controlled voluntarily and it can serve as an entry point for physiological and psychological regulation .
You may be able to stop yourself from hyperventilating if you focus on taking controlled breaths. Controlled breathing may help you begin breathing normally once again .
The practice of controlled (conscious) breathing refers to inhalation, retention and exhalation that can be performed quickly or slowly. Conscious breathing functionally resets the autonomic nervous system, which synchronizes neural elements in the heart, lungs, limbic system and cortex . Encouraging slow exhalation helps, because it buys time and allows CO2 to build up before the next inhalation .
Yoga improves the efficiency and adaptive nature of habitual forms of cognition, emotion, and behavior across systems of mind–body functioning through neurocognitive physiological appraisal and neurophysiological autonomic changes .
I have to express my appreciation to Dr. Eema Chaudhary, DNB, Associate Professor, Department of Respiratory Medicine, Subharti Medical College, for sharing her pearls of wisdom during the whole process of preparation of this article.
I am also grateful to Mrs. VandanaKhanna, clerk in the department of Respiratory Medicine, for her assistance in the process of submission of my manuscript. I am also thankful to my “SNMC 1970” batch mates for their good wishes.
It is to inform you that Dr. Umesh Pal Singh is the sole author of this article.
Competing Financial Interests
It is to declare that there is no issue of any kind of conflict of interest.
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Citation: Singh UP (2018) Chronic Hyperventilation: Hypocapnia and Psychophysiological Dysregulation . Psych Clin Ther J 1: 104.
Copyright: © 2018 Singh UP. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.
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