Why We Itch

Something we do everyday, or every minute, is itching. It is such a common thing in life, but you ask most people, and they won't be able to tell you why they do it or what itching does for you. Well it feels real good, and now scientists may know why. Apparently itching shuts off the areas in the brain associated with unpleasant feelings and memories. I want to learn more about this because it is such a common thing that most people know nothing about. 

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