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Invisible Allies

Radiolab

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Vitamin D Isn't a Vitamin in the Traditional Sense

Vitamin D isn't a vitamin in the traditional sense Because generally vitamins are things that exist outside of the body that we need to ingest to get. Our bodies can make the stuff in house And the way we do so is sort of cosmically astonishing Basically, we've got this proto-cholesterol molecule in our skin That cholesterol is just sort of sitting there doing its thing But when it gets hit with sunlight It becomes untethered from your nose and absorbed into your bloodstream. This photosynthesized vitamin Is correlating with COVID in a series of strange ways.

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