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