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