What is the scientific objection to the effects of hypnosis?

Answer:

Responses may vary but should include some or all of the following information: Scientists who argue that hypnosis may be ineffective claim that there is no effective way to control for the placebo effect. When compared to no treatment, hypnosis seems to be effective in solving many medical issues, yet there is no way to tell if that is because hypnosis actually has some effect on people or if it because people think hypnosis works.