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