My blood is a milky white, my body can go without oxygen for periods of up to an hour, allowing me to swim under water, survive gas attacks and cope with sustained periods of extreme exertion while still maintaining an efficient heart-rate and respiration level. This cold-bloodedness also has the effect of allowing me to develop a sort of 'spacial genius', which manifests as a subconscious ability to control my body with extreme accuracy and to perceive and predict the movements of enemies and projectiles with a 96.1% success rate.
I may have over-thought this one.