Blood is made up of red blood cells, white blood cells, platelets, and plasma. Markers called antigens are found on the surface of red blood cells, and differences in these markers classify various ...

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" ...

Do you know your blood type? Find out so you can learn more about how it affects your heart health. Jessica was a writer on the Wellness team, with a focus on health technology, eye care, nutrition ...

Dr. Anju Goel, MD, MPH, is a public health consultant and physician with more than 10 years of experience in the California public health system. If you or someone you know seems to get bitten by ...