Wes,
I'm going to try this 1/2 lung and maybe full exhale. That works the 02 end of things harder and I'm curious to see if I can push myself deeper into anoxia (without falling down). Any opinion?
I did not make myself clear on the "progressively lower" 02 levels. What I meant was: did the minimum 02 level drop lower and lower with each repitition of breath hold?
Thanks
Connor
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