The science behind blood’s color Blood gets its color from hemoglobin, the protein in your red blood cells that carries oxygen throughout your body.

Red blood cells, which are part of the circulatory system, deliver oxygen to cells throughout the body and carry away carbon dioxide. Platelets are cell fragments that form clots and stop bleeding.

RDW (red cell distribution width) tests measure the variation in red blood cell size, helping diagnose anemia and other blood disorders.

The MCHC blood test measures the concentration of hemoglobin in red blood cells, helping diagnose anemia and other blood disorders.

Scientists have been working on the artificial production of blood for several decades. Now, researchers from the University of Konstanz and Queen Mary University of London have taken an important ...

Red blood cells are complex — there's much more to blood types than A, B and O.

Scientists have uncovered a new biological mechanism behind tissue and organ damage in low-oxygen conditions like heart attacks, strokes, and severe COVID-19. Bursting red blood cells—not ...

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years, ...

Damage to the vascular lining leads to interactions with red blood cells that hint at how to treat dangerous complications of heart attack, stroke and COVID-19.

Scientists have been working on the artificial production of blood for several decades. Now, researchers from the University of Konstanz and Queen ...