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