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