Cool article. Copper healing bracelets, magnetic healing bracelets, crystal healing, even astrology are all placebos I guess. The placebo effect is a fascinating topic.
Have you done an article on the nocebo effect yet? That's the one where you expect a negative heath consequence from something that should be benign.
it is something fascinating the power of the mind, I am even preparing a post of nocebo, it is the malignant brother of the placebo, today I publish it ... thanks for reading this interesting topic