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