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