GleamBlog

But in 1799 the renowned physician John Haygarth decided to test whether they really worked, and at the same time perform a scientific examination of "that faculty of the mind, that is denominated the Imagination". He organised a trial at a hospital in which five people suffering chronic rheumatism were treated with replica wooden tractors. "All five patients, except one, assured us that their pain was relieved," he reported. "One felt his knee warmer, and he could walk much better, as he shewed us with great satisfaction. One was easier for nine hours, and till he went to bed, when the pain returned. One had a tingling sensation for two hours."

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