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