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