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