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Is there an anti-placebo effect as in a patient believing a treatment doesn't work reducing the effectiveness? If so, how strong is it?

5113 upvotes

13 upvotes

Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Is there an anti-placebo effect as in a patient believing a treatment doesn't work reducing the effectiveness? If so, how strong is it?	5113
Does cognitive ability such as memory, processing decline as we age?	13