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