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【TED-Ed】患有脑震荡会引发什么?|What happens when you have a concussion?
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Each year in the United States, players of sports and recreational activities receive between 2.5 and 4 million concussions. How dangerous are all those concussions? The answer is complicated and lies in how the brain responds when something strikes it. Clifford Robbins explains the science behind concussions. 美国每年有250-400万体育运动业或者娱乐活动参与者出现脑震荡。脑震荡有多危险?答案很复杂,并且和大脑对撞击做出的反应有很大关系。Clifford Robbins 解释了脑震荡背后的科学问题。
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