Recent comments in /f/askscience

geistererscheinung OP t1_j94pjox wrote

I know this answer: It's far more prevalent in the sea than anywhere else, and diminishes in concentration as you move inland. Many inland regions, especially mountainous regions were traditionally so deficient in iodine that many people suffered from extreme deficiency.

https://en.wikipedia.org/wiki/Congenital_iodine_deficiency_syndrome

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beyardo t1_j94jip4 wrote

Should be noted that anemia of chronic disease is separate from chronic blood loss anemia, although IBD can cause both. Anemia of chronic disease is a result of chronic inflammation decreasing your body’s synthesis of RBCs, while blood loss anemia like that seen in chronic bleeding is a result of losing blood

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