<![CDATA[When was the earliest study of acupuncture that used sham needles (superficial needles that don’t do anything) to trigger a placebo healing effect?]]>When was the earliest study of acupuncture that used sham needles (superficial needles that don’t do anything) to trigger a placebo healing effect? There appears to have been numerous studies on this topic, but the earliest one I found was this https://www.southampton.ac.uk/news/2005/05/beyond-the-placebo-effect.page from 2005.

I swear I had heard about similar studies in the 1990s. Was I mistaken?

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