I had a car accident last week ( Im ok but my car is a write off) and the hospital did my saturation levels. I told them that my satuaration is usually about 96% because I have a bit of a lung issue due to scoliosis. Anyway, when they put the little light on my finger my saturation was 100%! Its never been 100%. Could it be because of my running? Im only on week 4 but I do feel healthier already.