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