There are four components - or parts - of the blood: red blood cells, white blood cells, plasma and platelets. Blood carries things you need, like oxygen and glucose, and waste products ...

It is composed of platelets which control clotting to stop the body bleeding out; white blood cells which form our defence system, fighting infection; and red blood cells which transport food and ...

Drying droplets have fascinated scientists for decades. From water to coffee to paint, these everyday fluids leave behind ...

Or, you can donate blood components like plasma, red blood cells, and platelets, where a machine separates your blood into the various components and then returns the leftovers to your body.