You may know that doctors use blood plasma to measure the health and functions of certain organs, including the heart, liver, and kidneys. It’s yellowish in color and makes up more than half of your body’s total blood volume. But what is plasma made of? The vast majority of plasma is water. But there are also proteins and hormones, which help regulate certain bodily functions; glucose, which your body uses for energy; clotting factors, which help prevent excessive bleeding; carbon dioxide, which you exhale as a waste product; and more. Without plasma, you could not survive. If you’re still asking what is plasma made of, or if you want to learn more, visit https://www.goodcell.com/the-science/.