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