Why blush?

New Scientist magazine has piece on 10 things we still can't explain about humans, and blushing is one of them. Why do humans give out a visible signal that we are either embarrassed or lying, what purpose does blushing actually serve?

For some it's a real problem, and they'll blush at the drop of a hat and avoid social situations because of it. Can we control blushing? Apparently so according to stop-blushing.com, who tell sell you how. More seriously the Guardian recently covered a new treatment that could help those who have severe blushing (erythrophobia).


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