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