[Yo-Yo]

In true outer space, people are far enough from the gravitational pull of the earth to be in true weightlessness. Blood flow is harder without the pull of gravity, digestion is harder, excretion is harder, and so on and on.

I don't mean to pile on (well, yes I do...) but you must realize that a body orbiting the Earth (like the International Space Station) is still fully under the influence of Earth's gravity, and so are the people inside. Both are just in a perpetual state of free-fall around the Earth, so their relative motion with each other gives the illusion of zero gravity.

Even the Apollo Astronauts who went to the Moon were under 99% of Earth's gravitational pull, which is why the Moon orbits the Earth.

Descending inside the fuselage of an aircraft is exactly the same as orbiting the Earth.

[Political Junkie Too]

I don't mean to pile on (well, yes I do...)

Don't worry... I deserve it. I realized my late-night posting mistake. 🚀 ^🌕

-PJ

[nomorelurker]

True the experiments on the ISS and the old Sky Lab are technically done in micro gravity not true weightlessness. Been awhile but lots of old SciFi I read had centrifugal force used to add a bit of “gravity” for the human body and other things to work in true zero gravity.