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