Bone marrow contains blood I think, so it would be considered a donor procedure since you're donating blood.
<span>Platelet is a term that is not used to refer to white blood cells. Platelets are the smallest of all blood cells, and make up a very small fraction of blood volume. The function of platelets is to prevent bleeding, whereas the function of white blood cells is to fight off infection and increase immunity to disease.</span>
<span>Exercise provides a healthy outlet for feelings, which helps improve emotional and mental wellbeing. Additionally, exercise improves physical wellbeing, which makes it a strong contributor to the general and overall fitness of a person. </span>
