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