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