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