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