Blaylock

1] cause hypoxia in some patients; (Hypoxia is a condition in which the body or a region of the body is deprived of adequate oxygen supply at the tissue level. Hypoxia may be classified as either generalized, affecting the whole body, or local, affecting a region of the body.​)

2] cause hypercapnia in those same patients; (Hypercapnia is generally caused by hypoventilation, lung disease, or diminished consciousness. It may also be caused by exposure to environments containing abnormally high concentrations of carbon dioxide, such as from volcanic or geothermal activity, or by rebreathing exhaled carbon dioxide.​)

3] impair one’s immunity; harmful respiratory viruses (and bacteria as well – good ones and bad ones) when exhaling (thus forcing the viruses – and the bacteria – to be rebreathed again and again instead of being excreted from the body’s respiratory system...