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