These two sets of reactions are where everything that we've learned so far — about the digestive, endocrine, circulatory, and respiratory systems — really starts to come together.
As medicine advanced, doctors realized the importance of the respiratory and cardiovascular systems, establishing cardiopulmonary failure as the most surefire way to confirm death.
But it can also emit carbon monoxide, methane, formaldehyde, and particulate matter, which decades of research have shown negatively affect our respiratory and cardiovascular systems.
Essentially, the respiratory system is going rapidly back and forth between two states, first making no effort to breathe and then hyperventilating, with no in-between.
The drop in CO2 that occurs in your blood when you hyperventilate is called hypocapnia, and it signals a breakdown in one of the most complex and important functions that your respiratory system performs.