Medically reviewed by Steffini Stalos, DO Key Takeaways The oxygen desaturation index (ODI) measures how often and how much your blood oxygen level drops while you sleep.A normal ODI is fewer than ...

A pulse oximeter is a device that clips on your finger, toe, or earlobe to measure blood oxygen saturation. Here's how it works and how to read it.

Americans are iron deficient and at risk of anemia. You can combat iron deficiency with iron supplements and diet.

Researchers at Karolinska Institutet have discovered how cells can adjust their gene activity to survive when oxygen runs low ...