
Chris
@nwdiver93
ID: 2213302344
25-11-2013 01:05:36
7,7K Tweet
45 Followers
44 Following

Latimer Alder The red dot here is how much iron you need in your blood. ~2ppm. You can't even see it. 3ppm and you get Haemochromatosis. 1 ppm and you get anemia. It's amazing how small concentrations can have large effects. Science!
