Re:Cognitive deficits in people who have recovered from Covi...
by labseven on Wednesday October 21, 2020 @09:41AM
(#24847772)
From my understanding, the deep breathing doesn't particularly raise O2 (which is already 97-99%) but purges CO2, which then lets you hold your breath (empty lungs) for 2-3 minutes. In this period, my O2 (on my finger) drops to 85% before I feel a need to breathe in. It is important to 'replenish' the CO2 between deep breathing, otherwise I get very loopy.
It’s extremely easy to raise my O2 sats at altitude by conscious deep-breathing, but IME, it’s incredibly difficult to lower them near sea-level by any amount of conscious breathing changes. I’m curious to try the Wim-Hof methods on my pulse ox and I’ll do that, but I fully expect to see consistent 98-99% O2 sats here at 10 meters above sea level with anything other than changing the air composition to reduce partial pressure of O2.