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Positive mental attitude is a key component of healing, I do believe that, but it cannot heal physical trauma or disease on its own. There is no reliable evidence of that. It can be used to reduce pain sensations and can have benefits on the immune system though. What it won't do is cure you of a virus, fix a broken leg, cure cancer, etc. It can just increase your chances of a better outcome, even if only by a very small margin.


