RDW measures how much your red blood cells vary in size. A higher RDW can be an early sign of low iron, B12, or folate, and is linked with overall health and aging.
Yes—among 45 healthy men, living at 2,270 meters was linked to blood changes, including more even red cell sizes.
One change involved [RDW (Red Cell Distribution Width)](/biomarkers/blood/rdw-red-cell-distribution-width). This measures how
Iron given through a vein alongside a transfusion was linked to better blood recovery by day 7 after surgery.
The study looked back at records from 119 people. All needed blood transfusions for bleeding after surgery involving female repro