Saturday, June 21, 2008

Side Effects of Evolution


Pagophagia (compulsive ice eating) is similar. It is caused by anemia (too little iron). In the Stone Age, there was no ice. An intense desire to crunch something in your mouth would have led you to crunch bones. Bone marrow is high in iron. It’s another mechanism that worked well in the Stone Age but now malfunctions.....

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