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, sensation, 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.
Contrary to popular belief, hypnosis does not involve being put in a deep sleep, and the client cannot be forced to do anything that they would not ordinarily do. They remain completely aware of their surroundings and situation. The essential thing is how much they are motivated to make a change, and to stay away from their habit or addiction. Their motivation and eagerness, as well as their relationship with the therapist, are major factors leading to the success 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.”
Hypnotherapy is a form of psychotherapy used to create change in a patient while in a state of sleep, or unconsciousness, known as hypnosis. The word hypnosis comes from the Greek word “hypnos” which simply means, “sleep.” The therapy itself uses guided relaxation techniques from a trained hypnotist that invoke feelings of intense relaxation, concentration, and/or focus to achieve a heightened state of awareness or trance-like state.
Yoga practice involves postures, breathing exercises, and meditation aimed at improving mental and physical functioning. Some practitioners understand yoga in terms of traditional Indian medicine, with the postures improving the flow of prana energy around the body. Others see yoga in more conventional terms of muscle stretching and mental relaxation.
It is used for a wide variety of applications, and studies into its efficacy are often of poor quality which makes it difficult to determine efficacy. Several recent meta-analyses and systematic reviews of the literature on various conditions have concluded that the efficacy of hypnotherapy is "not verified", that there is no evidence or insufficient evidence for efficacy.