1. Hyperventilation reduces carbon dioxide in blood.
2. Carbon dioxide is a spasmolytic. Without it bronchial and vascular spasms occur.
3. Carbon dioxide organizes the transport of oxygen from the blood to the cells. Without it hypoxia is created (Verigo-Bor law)
4. Carbon dioxide is the main regulator of blood pH. Changing this indicator leads to violations of immunity and metabolism.
All this information is taken from physiology textbooks: Kositsky G.I. 1985 and John B. West "Physiology of breathing. Fundamentals". 1988.

The knowledge of these points is enough to begin to engage. Details with the theory of health can be found in the following topics.

Basic health
A brief retelling of a popular science article

      What would you say if you heard that you were being offered a panacea that could quickly and effectively improve the blood supply of all tissues, remove the cramps from the vessels and bronchial cells,  restore the metabolic disturbance, calm the nervous system and make the blood flowing more than water.
      I agree. It all sounds like cheap advertising, and no one in their right mind would believe it. Until he himself is sure, having read the textbook of physiology and, the main thing,  will test all the properties of this substance called carbon dioxide.
      Let’s try to study these textbooks.