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為什麼我們會癢？ - 艾瑪布萊斯
7,196,374 views |
Emma Bryce |
TED-Ed
• April 2017
Read transcript
一般人每天會有數十次瘙癢感。我們都曾歷過惱人的難搔之癢，但你是否想過為什麼會癢？瘙癢是否有進化上的目的？或者它單純只是種惱人的存在？艾瑪布萊斯深入皮膚來探索答案。 課程：艾瑪布萊斯。動畫：Sashko Danylenko。 完整課程：http://ed.ted.com/lessons/why-do-we-itch-emma-bryce
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