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