Oxygen or Carbon Dioxide?

Oxygen carries no regulatory function in the body. The body simply uses it to oxidise other substances. We are not sensitive to it, as there is 20 times more in the atmosphere than we need at any time.
​
Carbon Dioxide (CO2) is an “informative humeral vital constant, which regulates – without exception – all body functions”. We are very sensitive to it and more importantly its loss as there is only 1/200th in the atmosphere of what we need.