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