What causes motion sickness? - Big Questions - (Ep. 210)

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motion-sickness   health   science   motion   ill   vertigo   inner-ear   ear   vestibular   dizzy   car   sick   medical   faint   light   travel   air   sea   vomit   puke   gross   cool   interesting   mental-floss   craig-benzine   wheezy-waiter   john-green   trivia   question