Do any of you think breath holding is a valid method for increasing CO2 levels and overall health or no? And I'm talking about typical buteyeko exercises like exhaling than holding your breath and then breathing normally for 3 breaths and repeat. What about consciously making and effort to slow your breathing? former poster Visionofstrength seems to think those are the 2 most important things for achieving health if you look at his most recent threads on the other ray peat forum. Ive tried to search for ray peats opinion on the subject but I haven't found anything... Does anyone have any quotes from him on the subject.