microgravity
zero gravity
regular gravity
motion sickness
sleeping sickness
migraines
food poisoning
legs and arms
lungs
stomach
torso and head
muscles
legs
brains
hands
their sense of balance doesn’t change
their sense of balance gets worse
their sense of balance gets better
interacting
walking
eating
talking
it slows down
it swells with fluid before shrinking
it speeds up
nothing, it stays the same