Board Thread:Roleplaying/@comment-1734134-20170418192056/@comment-27830834-20170430052029

Okay, well, assuming you haven't already read Echo's character page here's the cliff notes:
 * Echo's blood is still standard hemoglobin, only its silver-based as opposed to iron-based. This is why it turns black instead of red when exposed to the air. Blood loss for him is like blood loss for anyone else, the only major caveat being that his blood is highly electroconductive.
 * Echo's anatomy is largely the same as a normal human save for the fact that he possesses a third lung. He can theoretically survive with only two but the drop in oxygen would starve his brain and effect his higher thought processes.
 * Speaking of his brain, most of his actual augments are located in his skull, brain, and brainstem. As you might imagine they essentially allow him to receive and process information like a biological computer. However, after the business with Cain, some of said computational augments may have... broken. After all, no sane person can analyze the Warp.
 * Finally, all that computation burns a lot of calories. The more he uses his brain, the more nutrients he needs to consume to keep him functioning. Because of this his metabolism is nothing short of hyperactive and he can even consume Astartes-grade rations without suffering an explosive emetic reaction. It also grants him a high resistance to biological threats like viruses, bacteria, and toxins. So no need to worry too much about infections.