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