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Blood oxygen saturation

Blood forJanddhyaa series on paper, Newburgh, NY, 2022

The blood oxygen level is a measure of how much oxygen your red blood cells need to carry.
Usually, a percentage of oxygen in your blood between 95 and 100% is a sign of good health.
When your body is low on oxygen, you feel tired and less likely to engage in physical activity.
I paint the steps of inhalation and exhalation of air in our lungs.