The mystery of motion sickness - Rose Eveleth

source: TED-Ed    2014年1月13日
View full lesson: http://ed.ted.com/lessons/the-mystery...
Although one third of the population suffers from motion sickness, scientists aren't exactly sure what causes it. Like the common cold, it's a seemingly simple problem that's still without a cure. And if you think it's bad on a long family car ride, imagine being a motion sick astronaut! Rose Eveleth explains what's happening in our bodies when we get the car sick blues.
Lesson by Rose Eveleth, animation by Tom Gran.