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