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