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