Board Thread:Off Topic/@comment-26397825-20170410034737/@comment-25936766-20170420231816

PisceanWaterbender wrote This power was influenced by reading of the story of a Finnish Olympic athlete named Eero Mäntyranta, who had a rare blood condition known as "polycythemia" which resulted in the overproduction of red blood cells by his bone marrow and gave him access to additional oxygen, making him harder to tire, a significant advantage over his competitors in the Olympics. Alright, technicism first: Polycythemia doesn't mean one has an overproduction of Red Blood cells. Polycythemia is when the volume % of RB cells in the blood is over 55%. Absolute Polycythemia is when there are more than normal, while Relative Polycythemia is when there's instead less plasma in the blood.

The Absolute kind, particularly, can be caused by multiple means. Malignancy, Myeloproliferative diseases (which I think was the case with Eero), a reaction to chronically low oxygen levels, over-transfusions of blood, an by extension blood doping.

They also have their classifications. Eero had what is called "Primary Familial and Cognitive Polycythemia" (PFCP), which is what caused his increased oxygen-carrying capacity in his blood, which does not give him endurance per se (like your Semblance does), but it allowed him to do better in Endurance events which demand Stamina.

So, yeah, you just made a bloody version of having more stamina.....which requires you to use Aura since it's a Semblance....which makes you more tired as a result.