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