Contagious Itch (AUDIO)
Caption
Things like laughing, yawning and itching can be socially contagious. That is, if you see a person yawn, you might start yawning, too. Or if a group of people is laughing, you might start to laugh, too. And the same thing is true for scratching. In the past, many researchers have thought the phenomenon is "all in your mind," but now a research team at Washington University School of Medicine in St. Louis has found that, at least in mice, contagious itching is hard-wired into the brain. Jim Dryden reports...
Credit
Washington University BioMed Radio
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