Answer: Your brain constantly gets signals from your body which detect the amount of oxygen and carbon dioxide in your blood. Your brain will send signals to the muscles involved in breathing and adjust your breathing rate depending on how active you are.
This ensures that the research is corroborated by other scientists and is peer-reviewed hence increasing the veracity of the findings. This also ensures that conflict of interest is addressed whereby the findings by the company may appear to be compromised or biased because such a finding would be in favour of their own needs (such as financial gain). Peer review in such case is even more important because it involves humans subjects and ethics are paramount in healthcare research.
