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