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