Learn what different shades of blood mean and how they signal changes in your health or potential medical issues.

It targets quickly dividing red blood cells to slow their production. A long-acting version, called peginterferon alfa (Pegasys), has fewer side effects. Ropeginterferon alfa-2b-njft (Besremi ...

In mammals the heart is a double pump. The right side pumps deoxygenated blood to the lungs and the left side pumps oxygenated blood to the rest of the body tissues. This means that a red blood ...