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