Blood – everyone's got it. In fact, an adult who weighs between 150 and 180 pounds has around 1.2 to 1.5 gallons of blood in their body. This makes up approximately 10% of an adult’s weight. Blood ...

according to American Red Cross. A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body" ...

Most people only find out their blood type when donating blood or when a medical emergency calls for it. Recent research suggests this biological marker may influence heart health. Multiple ...

Here’s what you’ll learn when you read this story: There are rare blood types beyond the eight most common ones, and researchers have discovered one more that brings the total count to 49. Blood type ...

Your blood type might seem like a minor detail in your medical history, but it carries significant implications for your health and medical care. From emergency transfusions to pregnancy planning, ...

Currently, there is a high demand for blood, with experts urging people to donate if they are able. This is because they need enough of the correct blood type to "meet day-to-day patient needs and to ...