Which I hear isn’t approved yet by the FDA, so expect a slew of lawsuits after COVID-19 fades. I expect them anyway, for whatever reasons lawyers can come up with.
I’m not quite sure what you’re talking about, but the lung exercises that is mentioned is called “EFT,” Emotional Freedom Technique; he said to search EFT, Gary Craig, to get the details. It’s free info; he tried it and it raised his oxygen intake so that he did not have to use a respirator.