Dozens of studies have shown that modern "normal subjects" breathe about 12 L/min at rest, while the medical norm is only 6 L/min. As result, blood CO2 levels is less than normal.
Dr. Artour Rakhimov writes, “The minus 4-th and -5th degrees of health in the above chart corresponds to patients whose life is not threatened at the moment, but their main concern are symptoms. People with mild asthma, heart disease, diabetes, initial stages of cancer, and many other chronic disorders are all in this zone. Taking medication is the normal feature for most of these people. As we see from the table, heart rate for these patients varies from 80 to 90 beats per minute. Breathing frequency is between 20 and 26 breaths per minute (the medical norm is 12, while doctor Buteyko’s norm is 8 breaths per minute at rest). Physical exercise is very hard, since even fast walking results in very heavy breathing through the mouth, exhaustion, and worsening of symptoms. Complains about fatigue are normal. All these symptoms are often so debilitating that they interfere with normal life and the ability to work, analyze information, care about others, etc. Living in the chronic state of anxiety due to effects of stress and being preoccupied with one’s own miserable health are normal, while efficiency and performance in various areas (science, arts, sports, etc.) are compromised. Sitting in armchairs or soft couches is the most favorite posture.”
Dr. Lynne Eldridge and many others have noted most modern adults breathe much faster than what would be considered a healthy respiratory rate. Respiratory rates in cancer and other severely ill patients are usually higher, generally about 20 breaths/min or more. Meaning the general population is driving down oxygen available to cells opening the door to increased incidences of cancer. Heavy metal and chemical toxicity of the cells further impede oxygen with nutritional deficiencies are a slam dunk that leads to cancer.
Oxygen availability to cells decreases glucose oxidation, whereas oxygen shortage consumes glucose faster in an attempt to produce ATP via the less efficient anaerobic glycolysis to lactate. This is much of the basis of oxygen therapy in cancer and a full range of other diseases because most chronically ill people, if not all, are having a hard time with both oxygen and its perfectly mated gas, carbon dioxide.