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