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