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