Group 1 - Blood is essential for life and plays a critical role in the body, but there are common misconceptions about blood transfusions [1] - Transfusions are not a means to "supplement nutrition"; they are primarily used in cases of severe anemia or blood loss when the body cannot tolerate hypoxia [1] - Direct blood transfusions between relatives are not permissible due to the time required for blood testing and the higher risk of severe reactions such as graft-versus-host disease [1] Group 2 - There is a misconception that "whole blood" is better than "component blood"; however, modern transfusions are tailored to specific needs, such as red blood cells for anemia or platelets for low platelet counts [1] - Whole blood can lose efficacy during storage, potentially leading to adverse reactions or increased burden on the recipient [1]