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