Scientists have long known that people living at high altitudes, where oxygen levels are low, have lower rates of diabetes than people living closer to sea level. But the mechanism of this protection ...

Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a recent study. Although the duration and long-term implications of the ...

Extreme endurance running damages red blood cells in ways that may affect their ability to function properly, according to a study published in the American Society of Hematology's journal Blood Red ...

Almost all animal species—including humans—have blood cells, but between different species our blood tells different stories. The lineage and components of blood cells vary widely, and this variety is ...

Blood cells carry a deep evolutionary history. A new analysis suggests their earliest ancestors were macrophage-like cells ...

Scientists discover ancient single-celled ancestors still live on in human blood, revealing a 700-million-year evolutionary link hidden inside the immune system. Researchers at Kyoto University traced ...

Dear Dr. Roach: I had an eye issue last year that led to blood tests resulting in an elevated A1C. I said that it wasn't my blood; I am plant-based, exercise regularly, and don't drink sodas or ...