Vampire physiology question

[shapinglight]

We all know the whole 'unneeded breath' thing is silly, right? We do, right?
Vampires may not need oxygen to live, but they do need to breathe in order to speak. Fine.

But does it make sense to anyone else (as it does to me) that their breath would feel rather on the cool side? They have no body heat of their own. They derive it from drinking blood. But does that warm them up so much their breath would be as warm as a human's?

Opinions, anyone?

Comments

[ex_peasant441]

Their breath would be approx their body temperature, which we know from The Initiative is approx room temperature - so at times in California it could theoretically be hotter than a human. In that scene, Spike hadn't eaten for long enough that he was hungry so it provides no direct data on if the blood warms their core body temperature much above room temp. In theory, conservation of energy tells us it must provide some heat but given that the human body is designed to lose heat efficiently, the effect probably wouldn't last long.

In normal conditions, the breath being room temperature would feel cool compared to a human, it would also be slightly moist from the lungs, which must be why *cough cough* it sometimes seems to steam in cold night air.

[shapinglight]

So cold and damp? Eww! basically.