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