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