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