and the veins and arteries are like roads going all the way through your body with the blood cells like delivery vans. The body is all the time shouting out:Over here! Delivery needed! I need oxygen!

However previous research by the same group found there are thousands of different lipids — also known as fatty acids — with ...

It’s also known as an erythrocyte count. Your hematocrit is the volume of red blood cells in your body. A hematocrit test measures the ratio of RBCs in your blood. Platelets are small cells that ...