Your blood is a delicate mixture. Researchers and clinicians often use blood to learn what's going on inside our bodies, in part because siphoning off a tube of blood is easier and less painful than ...

Red blood cells carry oxygen from the lungs around the body. They then carry carbon dioxide from around the body back to the lungs. These cells are an important component of blood. However, a range of ...

White blood cells help your body fight inflammation and infections. A high or low white blood cell count may be associated with a number of short-term or long-term health conditions. White blood cells ...

If a patient or research study volunteer is having a blood draw at or near a research facility that can perform this type of experiment on site, time delay doesn’t come into play. But for research ...