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