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