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