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From Universe Today:
The microgravity environment of the ISS poses many challenges to the human body - some more expected than others - but one that many people might not know about is the "molting" of dry skin, notably from the bottom of the feet. And while astronauts living aboard Space Station often spend their days working in socks, when they go to remove them they have to be especially careful to keep floating clouds of flakes at a minimum, lest they incite allergic reactions in their crewmates.
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