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