Do you guys ever check your O2 saturation levels?

[Shannow]

2019. and 2020, stuff going on with life, and the obvious.
Was punishing myself with breathing, breath holding etc to build mental resolve.

O2 normally high 90s, got it to under 50 one day (geld my breath for over 4 mins to get there 'though)

 

[slo town]

2019. and 2020, stuff going on with life, and the obvious.
Was punishing myself with breathing, breath holding etc to build mental resolve.

O2 normally high 90s, got it to under 50 one day (geld my breath for over 4 mins to get there 'though)

Four minutes? Impressive.

Scott