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Space Honey
(lemmy.nz)
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this post was submitted on 10 Apr 2026
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Does this happen to your blood too?
There's a slight increase in the blood pressure in your upper body, and a small possibility of thrombosis, blood clots forming in your veins. But after 50+ years of space flight no one has had complications.
Though most don't stay more than a few months up there.
also who would stay more than 6 months in space? a journey to mars takes about 6 months on the most fuel-efficient trajectory.
due to how weird orbital mechanics are, there's one (and only this one) most fuel-efficient trajectory between earth and mars and it's the so-called Hohmann Transfer Orbit ( https://en.wikipedia.org/wiki/Hohmann_transfer_orbit ). It takes 6 months.
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.
If you put it on a sandwich, yes.