HealthyPIG Magazine

A person's blood oxygen level indicates how well the body distributes oxygen from the lungs to the cells.
If someone's blood oxygen level is below 60 mm Hg, not enough oxygen may be reaching the body's vital organs. This may cause symptoms such as shortness of breath and dizziness.
This article explains what normal blood oxygen levels are, what happens when blood oxygen is low, how to measure blood oxygen, and more.