The analysis method of hypnotherapy, sometimes referred to as regression therapy, is more exploratory and related to uncovering the root of an issue, disorder or symptom. A hypnotherapist will hypnotize a patient by putting them into a relaxed state and exploring a past event in their life in order to explore the person’s subconscious and unconscious memory.
A 2006 declassified 1966 document obtained by the US Freedom of Information Act archive shows that hypnosis was investigated for military applications.[148] The full paper explores the potentials of operational uses.[148] The overall conclusion of the study was that there was no evidence that hypnosis could be used for military applications, and no clear evidence whether "hypnosis" is a definable phenomenon outside ordinary suggestion, motivation, and subject expectancy. According to the document:
There are no studies to show that hypnosis can affect outcomes after breast cancer specifically. However, hypnosis does appear to help with some of the symptoms of cancer and side effects of its treatment, such as pain, nausea, vomiting, stress, and anxiety. Research is also being done to find out whether hypnosis can help reduce hot flashes in women who have had breast cancer.
State theorists interpret the effects of hypnotism as due primarily to a specific, abnormal, and uniform psychological or physiological state of some description, often referred to as "hypnotic trance" or an "altered state of consciousness". Nonstate theorists rejected the idea of hypnotic trance and interpret the effects of hypnotism as due to a combination of multiple task-specific factors derived from normal cognitive, behavioural, and social psychology, such as social role-perception and favorable motivation (Sarbin), active imagination and positive cognitive set (Barber), response expectancy (Kirsch), and the active use of task-specific subjective strategies (Spanos). The personality psychologist Robert White is often cited as providing one of the first nonstate definitions of hypnosis in a 1941 article:
"I am an eclectic therapist with experience in individual, family, couple, and group counseling. Though my favorite forms of psychotherapy approaches are Eye Movement Desensitization and Reprocessing (EMDR), Trauma-Informed Cognitive Behavioral therapy(TB-CBT), and Cognitive Behavioral therapy (CBT). My counseling style is tailored to clients' individualized needs to helping them achieve successful resolution of their underlining issues and trauma, resolve their emotional thoughts and memories that are sabotaging their personal growth, cultivate the ability to stay present without their symptoms, and become capable of stopping their past experiences from interfering in their lives."
The U.S. Department of Health & Human Services recognizes the healing power of hypnosis and its proven effectiveness for anxiety, pain control, smoking cessation, headaches and more. Hypnosis may be safe and complementary way to augment medical attention you are receiving for a chronic illness or pain, or a way to resolve an addiction or phobia that you are otherwise unable to control. Hypnosis does not work on every person. When scientists began studying hypnosis in earnest, a report published by Stanford University titled “The Stanford Hypnotic Susceptibility Scale” demonstrated that different brains respond to hypnosis in varying degrees, and a very few do not respond at all. Working with a trained psychologist, you’ll soon determine whether you are a good candidate for the healing benefits of hypnotherapy.
After developing a substantial following — “mesmerism” became “the height of fashion” in late 1780s Paris, writes Marchant — Mesmer became the subject of what was essentially the world’s first clinical trial. King Louis XVI pulled together a team of the world’s top scientists, including Benjamin Franklin, who tested mesmerism and found its capacity to “cure” was, essentially, a placebo effect. “Not a shred of evidence exists for any fluid,” Franklin wrote. “The practice … is the art of increasing the imagination by degrees.”

Therefore, Braid defined hypnotism as a state of mental concentration that often leads to a form of progressive relaxation, termed "nervous sleep". Later, in his The Physiology of Fascination (1855), Braid conceded that his original terminology was misleading, and argued that the term "hypnotism" or "nervous sleep" should be reserved for the minority (10%) of subjects who exhibit amnesia, substituting the term "monoideism", meaning concentration upon a single idea, as a description for the more alert state experienced by the others.[23]

But how does the suppression mechanism decide what to suppress? In this study, movie content but not movie context was influenced by PHA. Memories involve the “what,” “how,” “when” and “where” of an event interwoven together, such that distinctions between content and context may be blurred (for example, “Was the movie shot with a hand-held camera?”). To make such fine discriminations, the brain’s suppressor module presumably needs to process information at a sufficiently high level. Yet this module needs to act quickly, preconsciously suppressing activation of the information before it even enters awareness. Brain imaging technologies with superior temporal resolution to fMRI, such as magnetoencephalography (MEG), might help to resolve this seeming paradox of sophisticated, yet rapid, operations.
In 1784, at the request of King Louis XVI, a Board of Inquiry started to investigate whether animal magnetism existed. Among the board members were founding father of modern chemistry Antoine Lavoisier, Benjamin Franklin, and an expert in pain control, Joseph-Ignace Guillotin. They investigated the practices of a disaffected student of Mesmer, one Charles d'Eslon (1750–1786), and though they concluded that Mesmer's results were valid, their placebo-controlled experiments using d'Eslon's methods convinced them that mesmerism was most likely due to belief and imagination rather than to an invisible energy ("animal magnetism") transmitted from the body of the mesmerist.
Evidence from randomized controlled trials indicates that hypnosis, relaxation, and meditation techniques can reduce anxiety, particularly that related to stressful situations, such as receiving chemotherapy (see box). They are also effective for insomnia, particularly when the techniques are integrated into a package of cognitive therapy (including, for example, sleep hygiene). A systematic review showed that hypnosis enhances the effects of cognitive behavioral therapy for conditions such as phobia, obesity, and anxiety.
People have traveled from 50 countries to study hypnotism in our professional courses. Within the United States, our graduates have come from Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, Washington D.C., West Virginia, Wisconsin, and Wyoming.

So long as the therapist is trained and follows basic ethical norms, hypnotherapy is safe. Some people may feel dizzy or nauseous during or after being hypnotized. People who discuss traumatic memories may be subject to feelings of panic, flashbacks, or general feelings of anxiety, and the clinician or client may elect to discontinue treatment when symptoms are severe.
Although there are different techniques, clinical hypnotherapy is generally performed in a calm, therapeutic environment. The therapist will guide you into a relaxed, focused state and ask you to think about experiences and situations in positive ways that can help you change the way you think and behave. Unlike some dramatic portrayals of hypnosis in movies, books, or on stage, you will not be unconscious, asleep, or in any way out of control of yourself. You will hear the therapist’s suggestions, but it is up to you to decide whether or not to act on them.