Hypnotherapy has been studied for the treatment of irritable bowel syndrome.[117][118] Hypnosis for IBS has received moderate support in the National Institute for Health and Clinical Excellence guidance published for UK health services.[119] It has been used as an aid or alternative to chemical anesthesia,[120][121][122] and it has been studied as a way to soothe skin ailments.[123]
Hence, the social constructionism and role-taking theory of hypnosis suggests that individuals are enacting (as opposed to merely playing) a role and that really there is no such thing as a hypnotic trance. A socially constructed relationship is built depending on how much rapport has been established between the "hypnotist" and the subject (see Hawthorne effect, Pygmalion effect, and placebo effect).
Surgery/Anesthesiology (In unusual circumstances, hypnosis has been used as the sole anesthetic for surgery, including the removal of the gall bladder, amputation, cesarean section, and hysterectomy. Reasons for using hypnosis as the sole anesthetic may include: situations where chemical anesthesia is contraindicated because of allergies or hyper-sensitivities; when organic problems increase the risk of using chemoanesthesia; and in some conditions where it is ideal for the patient to be able to respond to questions or directives from the surgeon);
Hypnosis typically involves an introduction to the procedure during which the subject is told that suggestions for imaginative experiences will be presented. The hypnotic induction is an extended initial suggestion for using one's imagination, and may contain further elaborations of the introduction. A hypnotic procedure is used to encourage and evaluate responses to suggestions. When using hypnosis, one person (the subject) is guided by another (the hypnotist) to respond to suggestions for changes in subjective experience, alterations in perception,[24][25] sensation,[26] emotion, thought or behavior. Persons can also learn self-hypnosis, which is the act of administering hypnotic procedures on one's own. If the subject responds to hypnotic suggestions, it is generally inferred that hypnosis has been induced. Many believe that hypnotic responses and experiences are characteristic of a hypnotic state. While some think that it is not necessary to use the word "hypnosis" as part of the hypnotic induction, others view it as essential.[27]
Hypnosis for weight loss or to quit addictive behaviors like smoking or drinking, is how most people think of hypnosis. While people do often seek hypnosis therapy for these reasons, there are other reasons too. People may see a hypnotherapist before and during childbirth or to increase self-esteem. It can also be used to deal with chronic pain, insomnia, anxiety, or treat irritable bowel syndrome.
The main theorist who pioneered the influential role-taking theory of hypnotism was Theodore Sarbin. Sarbin argued that hypnotic responses were motivated attempts to fulfill the socially constructed roles of hypnotic subjects. This has led to the misconception that hypnotic subjects are simply "faking". However, Sarbin emphasised the difference between faking, in which there is little subjective identification with the role in question, and role-taking, in which the subject not only acts externally in accord with the role but also subjectively identifies with it to some degree, acting, thinking, and feeling "as if" they are hypnotised. Sarbin drew analogies between role-taking in hypnosis and role-taking in other areas such as method acting, mental illness, and shamanic possession, etc. This interpretation of hypnosis is particularly relevant to understanding stage hypnosis, in which there is clearly strong peer pressure to comply with a socially constructed role by performing accordingly on a theatrical stage.
I've wrestled about writing this article. I didn't feel right giving out this information to the public, but when I saw videos on other sites that tell people how to do this simple, yet very powerful suggestive hypnotic method, I decided to teach the public how to place a subject into trance by hypnotic induction. Please share this tool in a safe and responsible way.
Braid made a rough distinction between different stages of hypnosis, which he termed the first and second conscious stage of hypnotism;[43] he later replaced this with a distinction between "sub-hypnotic", "full hypnotic", and "hypnotic coma" stages.[44] Jean-Martin Charcot made a similar distinction between stages which he named somnambulism, lethargy, and catalepsy. However, Ambroise-Auguste Liébeault and Hippolyte Bernheim introduced more complex hypnotic "depth" scales based on a combination of behavioural, physiological, and subjective responses, some of which were due to direct suggestion and some of which were not. In the first few decades of the 20th century, these early clinical "depth" scales were superseded by more sophisticated "hypnotic susceptibility" scales based on experimental research. The most influential were the Davis–Husband and Friedlander–Sarbin scales developed in the 1930s. André Weitzenhoffer and Ernest R. Hilgard developed the Stanford Scale of Hypnotic Susceptibility in 1959, consisting of 12 suggestion test items following a standardised hypnotic eye-fixation induction script, and this has become one of the most widely referenced research tools in the field of hypnosis. Soon after, in 1962, Ronald Shor and Emily Carota Orne developed a similar group scale called the Harvard Group Scale of Hypnotic Susceptibility (HGSHS).
The term "hypnosis" comes from the ancient Greek word ὕπνος hypnos, "sleep", and the suffix -ωσις -osis, or from ὑπνόω hypnoō, "put to sleep" (stem of aorist hypnōs-) and the suffix -is.[9][10] The words "hypnosis" and "hypnotism" both derive from the term "neuro-hypnotism" (nervous sleep), all of which were coined by Étienne Félix d'Henin de Cuvillers in 1820. These words were popularized in English by the Scottish surgeon James Braid (to whom they are sometimes wrongly attributed) around 1841. Braid based his practice on that developed by Franz Mesmer and his followers (which was called "Mesmerism" or "animal magnetism"), but differed in his theory as to how the procedure worked.

A typical hypnotherapy session has the patient seated comfortably with their feet on the floor and palms on their lap. Of course, the patient could choose to lie down if that option is available and if that will meet the patient's expectation of hypnosis. The therapist can even set the stage for a favorable outcome by asking questions like, "Would you prefer to undergo hypnosis in this chair or on the sofa?" Once patients make the choice, they are in effect agreeing to undergo hypnosis. Depending on the approach used by the therapist, the next events can vary, but generally will involve some form of relaxing the patient. Suggestions will lead the patient to an increasingly relaxed state. The therapist may wish to confirm the depth of trance by performing tests with the patient. For example, the therapist may suggest that when the eyes close that they will become locked and cannot be opened. The therapist then checks for this by having patients try to open their eyes. Following a successful trial showing the patient's inability to open the eyes, the therapist might then further relax them by using deepening techniques. Deepening techniques will vary for each patient and depend largely on whether the patient represents information through auditory, visual, or kinesthetic means. If the patient is more affected by auditory suggestions, the therapist would use comments such as "You hear the gentle patter of rain on the roof;" or, "The sound of the ocean waves allow you to relax more and more." For the visual person, the therapist might use statements such as, "You see the beautiful placid lake, with trees bending slightly with the breeze." Finally, with the kinesthetic person phrases such as, "You feel the warm sun and gentle breeze on your skin," could be used. It is important for the therapist to know if the patient has difficulty with the idea of floating or descending because these are sometimes used to enhance the experience for the patient. However, if the patient has a fear of heights or develops a feeling of oppression with the thought of traveling downward and going deeper and deeper, suggestions implying the unwanted or feared phenomenon will not be taken and can thwart the attempt.
One obvious risk to patients is the insufficiently trained therapist. The inadequately trained therapist can cause harm and distort the normally pleasant experience of hypnotherapy. A second risk for patients is the unscrupulous practitioner who may be both inadequately trained and may have some hidden agenda. These rare individuals are capable of causing great harm to the patient and to the profession. As mentioned above, the patient should carefully scrutinize their chosen therapist before submitting themselves to this dynamic form of therapy.
“Learning hypnotherapy does not commit you to drastically changing your therapy practice,” says hypnotherapist Catherine Reiss. “The training will allow you to more quickly and effectively get to the cause of your clients’ unwanted behaviors and the feelings they present with it, but it also facilitates the use of trance in more traditional formats.”
Hypnosis might not be appropriate for a person who has psychotic symptoms, such as hallucinations and delusions, or for someone who is using drugs or alcohol. It should be used for pain control only after a doctor has evaluated the person for any physical disorder that might require medical or surgical treatment. Hypnosis also may be a less effective form of therapy than other more traditional treatments, such as medication, for psychiatric disorders.
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Look for a hypnotherapist who is a member of the American Society of Clinical Hypnosis (ASCH) or the Society for Clinical and Experimental Hypnosis. To be a member of either of these organizations, a hypnotherapist must have a doctorate level degree in medicine, dentistry, or psychology, or a master’s degree in nursing, social work, psychology, or marital/family therapy plus a specific number of hours of approved training in hypnotherapy. In some cases, accredited, doctoral-level practitioners of alternative health care, such traditional Chinese medicine, may also be approved for membership. Of course, in addition to looking at qualifications, you should also find a hypnotherapist with whom you feel confident and comfortable in a therapeutic relationship.