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