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Alas, advertisements or commercials for "hypnotherapy" to stop any number of bad habits from smoking to weight gain are almost unavoidable now days.

Are there any actual unbiased studies or hard statistics on whether or not hypnosis is effective at curing an addiction to nicotine, or breaking the habit of cigarette smoking?

Cestarian
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IQAndreas
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2 Answers2

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Green and Lynn (2000) conducted a meta analysis of 59 experiments investigating the efficacy of hypnosis on smoking cessation. Their conclusions were:

  1. There is mixed, inconclusive evidence for whether hypnosis is any better than placebos.
  2. Hypnosis treatments were generally confounded with educational interventions and cognitive/behavioral interventions, making it impossible to isolate hypnosis as the causal source of positive results.

In short, their conclusion is:

Hypnosis cannot, as yet, be regarded as a well-established treatment for smoking cessation

Barnes et al. (2010) ran a meta analysis ten years later, and came to the same general conclusion. There is no evidence that hypnotherapy for smoking cessation works better than no treatment at all. They found that claims of success in the literature are generally uncontrolled studies, and that:

The effects of hypnotherapy on smoking cessation claimed by uncontrolled studies were not confirmed by analysis of randomized controlled trials.

References

Barnes, J., Dong, C. Y., McRobbie, H., Walter, N., Mehta, M., & Stead, L. F. (2010). Hypnotherapy for smoking cessation. Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD001008.pub2

Green, J., & Lynn, S. J. (2000). Hypnosis and suggestion-based approaches to smoking cessation: An examination of the evidence. International Journal of Clinical and Experimental Hypnosis, 48(2), 195-224.

Josh
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  • Good answer, in essence, hypnosis can be an effective treatment, but not everyone can be hypnotized, and even among those who can be the results may vary significantly from person to person (for example how deeply hypnotized a person really is, is a huge factor, and how skilled the hypnotist is, is also a huge factor and directly related to how deeply the patients can be hypnotized to begin with) It cannot yet be regarded as a well established treatment maybe, but it is one of the very few with a very decent success rate. It's worth a shot at least if it is available to you. – Cestarian May 01 '15 at 17:10
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    I don't think the authors are claiming that it "can be an effective treatment." In fact, they are claiming the opposite: that it is generally no better than a placebo. – Josh May 01 '15 at 18:57
  • I never said I thought they were, there are two factors to hypnosis, at least in this context, one of them is an unknown factor (some people just can't be or are extremely hard to hypnotize) the other factor is how much people want the treatment to succeed e.g. lets say some guy goes in "I'll try hypnotherapy, but I don't think it'll work" he's already set into a mindset of resistance making it harder for him to be hypnotized successfully and then if he doesn't really want to quit smoking, or doesn't want this to be how he quits, the therapy will fail 100% certainly, all it takes is resistance – Cestarian May 01 '15 at 19:56
  • This naturally severely diminishes the odds of hypnosis treatments successfully treating people, all it takes is a little bit of doubt, or a little bit of "My mind can't be controlled by some hypnosis" mentality, and most people will think that way. Mostly because they don't know what hypnosis is, and don't understand how long it's been around, it's mostly only the truly desperate, and those who already believe fully in hypnosis that can be treated this way in the end. Hypnosis isn't for everyone. But for those it will work for, it's like magic. – Cestarian May 01 '15 at 19:58
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    @Cestarian: You may be right, but the point of these studies is that your conclusions have not been demonstrated experimentally. – Kramii Mar 04 '16 at 12:40
  • @Kramii yeah, it can't be (easily) proven that it is better or worse than placebo. I'd argue that placebo is a necessary component for hypnosis to work (they complement each other significantly). But well, I'm just stating what I think I know. There are many variables, when they all coincidentally "click" hypnosis will work so well you'll think it was magic. When they don't click, you'l lthink it was a waste of time. I'm 100% certain of this, I have a lot of first hand experience with hypnosis. I'm pretty sure if it's powerful enough to cure split personality, it can also stop smoking. – Cestarian Mar 04 '16 at 19:05
  • @JoshdeLeeuw I think they are claiming that there is not enough evidence to make a claim either way. – Christopher King Jun 29 '17 at 07:09
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Hypnosis is a state of human consciousness involving focused attention and reduced peripheral awareness characterized by an enhanced capacity for response to suggestion. It is however a non-permanent state so even if when you are hypnotised you don't have the impulse to smoke, once the hypnosis is over you'll be back to normal life. Freud was the first who studied this by studying a woman who could not move her arm in any way and when she was hypnotised she could, when the effect was over, she couldn't move it again. So, theoretically it's possible, but you should be in a permanent state of hypnosis, which obviously isn't the best think a person could experience.

Daniele C
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    Welcome to cogsci.SE! Good answers here are based in rigorous research, not just speculation or experience, and cite specific evidence to back up assertions. What evidence is there to support these statements? – Seanny123 Aug 11 '17 at 17:03