<div class="quote"><i> <p>Oddavatar wrote: </p> <div class="quote">Eo bablybut wrote:
What about all the dirt that's still inside the body even after separating from metals? They could probably bend that.</i></div>
<p>Yeah.. that's what I think will make sense too, but it'll probably take acute focus, skill, and some sort of dark motive, so I guess that's why no one else has done in so far.  </p> </div> <p>Yea, so far as we know. </p>

you must remember that bending has noting todo with science but i agreebending the iron in blood would be impossible and make earthbending to OP

<div class="quote"><i> <p>The amazing earthbender wrote: you must remember that bending has noting todo with science but i agreebending the iron in blood would be impossible and make earthbending to OP </p> </i></div>
<p>Plantbending and bloodbending say otherwise. </p>

<p>Plantbending is just using regular waterbending to manipulate plants that have a very high water content. Not a true subskill the way bloodbending is, simply a clever application. </p><p>As for bloodbending, the difference between that and the hypothetical ability for a metalbender to manipulate the iron in one's bloodstream is that the latter is a quantity so minuscule as to be nearly nonexistent, whereas blood is mostly water, so there is a very substantial quantity present in the bloodstream for a bloodbender to manipulate. </p><p>I'm going from memory here so these are approximations, but plasma, which constitutes something like 50-55% of the total volume of blood in the human body, is IIRC more than 90% water. Given then, that as was stated above the total amount of iron in the bloodstream of an average healthy adult human accounts for a mere 4 grams, that is such an infinitesimally small amount that I doubt a metalbender could do a damn thing with it. </p>

<p>Metalbenders controlling iron in the human body in general, not just blood, isn't a matter of quantity, but quality. I'm sure the low iron content would make it harder, but as I explained above, the iron in the human body isn't bendable due to the way it is incorporated into the physiology. </p>

<div class="quote"><i>Omnibender wrote:
<div class="quote"> <p>The amazing earthbender wrote: you must remember that bending has noting todo with science but i agreebending the iron in blood would be impossible and make earthbending to OP </p> </i></div>
Plantbending and bloodbending say otherwise. </div> <p>I have to agree with Omnibender... </p>

<div class="quote"><i>Omnibender wrote:
Metalbenders controlling iron in the human body in general, not just blood, isn't a matter of quantity, but quality. I'm sure the low iron content would make it harder, but as I explained above, the iron in the human body isn't bendable due to the way it is incorporated into the physiology.</i></div>
<p>They bend iron all the time, they should be able to bend it inside the body too. </p>

<div class="quote"><i> <p>Eo bablybut wrote: </p><p>They bend iron all the time, they should be able to bend it inside the body too. </p> </i></div>
<p>Go up to my previous comments and read about the lack of earthen impurities (which is what is actually bent in metalbending) and the incorporation of iron in organic molecules. </p>

<p>If the topic were directed at earthbending dirt in the body, then maybe a subskill likened bloodbending could be discussed as a possibility. I'm not sure where such dirt would be "normally" found. </p>

<p>Bloodbending is not just bending the water in your bloodstream, it means controlling <i>all</i> the water in you body. I wonder if this can mean bending your eyes dry. </p>