Why scratching makes you itch more

30 octubre 2014

Turns out your mom was right: scratching an itch only makes it worse. New research reveals that scratching causes the brain to release serotonin, which intensifies the itch sensation. Scientists uncovered serotonin’s role in controlling pain decades ago, but this is the first time the release of the chemical messenger from the brain has been linked to itch, they say.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/_K4JMgReOGI/141030132957.htm

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