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> Unfortunately, double blind studies of acupuncture are impossible

It doesn't seem completely impossible. You could have someone put the same needles in randomly, instead of in whatever location acupuncture claims they should be put in.

That would be single blind (edit: actually, now I see what you mean, double WRT location), but yes, the locations can be tested - and they have been. The needle action itself is what can't be properly tested.

No it has been tested. It's only placebo.

Yeah I actually agree with that in theory because the needles would be mimicking the same side effect, the sensation of needle in skin, to a good effect.

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