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