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