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