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