Being in space can have weird and sometimes harmful effects on the human body, and we’ll have to work through those issues if we’re to make it out to Mars and beyond, and stay healthy.
But it looks like we have finally found one feature of the human body that’s untroubled by microgravity — and it’s a part of our all-important immune system.
Based on a study of blood samples from International Space Station (ISS) crew members, a few months in space don’t affect B-cell immunity — the number of white blood cells in our bodies ready to fight off infection by producing antibodies.
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