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