Learning about blood can apparently make you hungry!
At least when you learn about blood through cookies. The cookie-artist hands of Ms. Humble from Not So Humble Pie joined the scientific knowledge from Joanne Manaster of the University of Illinois-Urbana to create an informative series of videos about the components of blood. Learn about the formed elements of blood: red blood cells (erythrocytes), white blood cells (lymphocytes, monocytes, basophils, eosinophils, neutrophils) and platelets. You might want to start with the introductory video above.
These videos can help one understand the basis for the importance of blood donations. ‘Blood’ consists of roughly 55% plasma, >1% white blood cells and platelets, and 45% red blood cells. A whole blood donation takes all of the blood and separates these three components into three products (without the white blood cells) that can ‘save up to three lives’. Apheresis donations specifically target one of the three components and separates it out while returning the other two components, as either platelet apheresis, plasma apheresis, or double-red donation. Whole donations are accepted state-wide, double-red at select drives, and apheresis donations are offered at the Portland and Clark County donor centers
Now, does looking at blood with such hunger make me a vampire?