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  • bdonvr@thelemmy.clubtoScience Memes@mander.xyzSpace Honey
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    28 days ago

    Veins are small so capillary action keeps things in order.

    With no gravity though you’ll have higher blood pressure to your head (and less to the legs)- it kinda makes astronauts faces a bit puffy. iirc this can slightly negatively affect vision long term.

    Most of your body processes are in a small enough space that capillary action overtakes gravity.