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.
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.
Does this happen to your blood too?
If you put it on a sandwich, yes.
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.
So what you’re saying is they should alternate between upside down and right side up
Technically if they did that fast enough the blood pressure on both would get higher, potentially MUCH higher.