Why do we itch? - Emma Bryce

Name: Why do we itch? - Emma Bryce
Uploaded: 2017-04-11T18:02:23+00:00
Description: View full lesson: http://ed.ted.com/lessons/why-do-we-itch-emma-bryce The average person experiences dozens of individual itches each day. Weâ€™ve...

Collected by YouTube on Apr 11, 2017

View full lesson: http://ed.ted.com/lessons/why-do-we-itch-emma-bryce The average person experiences dozens of individual itches each day. Weâ€™ve...

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