Where did I mention oxygen? The human average body contains enough iron to make a small nail. The iron is in the form of hemoglobin within the red blood cells. Copy Paste all of the below as to lazy to retype. I was of the opinion that iron was not alive but became alive when it was incorporated into the life process in the form of hemoglobin. I was totally wrong and it was explained to me why. I do find it strange that my life depends on a non living substance. (The iron) But it works so I am not going to argue. Humpty Dumpty not like arguments. Ditto Poe Please Register or Log in to view the hidden image!