According to the American Psychological Association (APA)’s Division of Psychological Hypnosis, hypnosis is a procedure during which a health professional or researcher suggests while treating someone that he or she experience changes in sensations, perceptions, thoughts, or behavior. Although some hypnosis is used to make people more alert, most hypnosis includes suggestions for relaxation, calmness, and well-being. Instructions to imagine or think about pleasant experiences are also commonly included during hypnosis. People respond to hypnosis in different ways. Some describe hypnosis as a state of focused attention, in which they feel very calm and relaxed. Most people describe the experience as pleasant.