Hypnosis, also referred to as hypnotherapy or hypnotic suggestion, is a trance-like state in which you have heightened focus and concentration. Hypnosis is usually done with the help of a therapist using verbal repetition and mental images. When you're under hypnosis, you usually feel calm and relaxed, and are more open to suggestions.
Hypnosis: Hypnosis is a state of consciousness in which a person apparently loses the power of voluntary action. During hypnosis, a person is said to have heightened focus and concentration. Hypnosurgery is the term given to an operation where the patient is sedated using hypnotherapy. Its use in therapy, typically to recover suppressed memories or to allow modification of behaviour, has been revived but is still controversial.