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