Hypnotherapy, or hypnosis, is a type of therapy in which clients are put in a trance-like state that leaves them more open to suggestion. Hypnotherapy is used to help a client create unconscious change, which may result in new behaviors, feelings or thoughts. Unlike how it is sometimes portrayed in pop culture, hypnosis will not cause you to lose control over your behavior. People under hypnosis typically feel calm and relaxed, and remain aware of what is happening. Hypnotherapy can be helpful in treating conditions including depression, anxiety, stress and insomnia. It can also be beneficial in conquering negative habits, like smoking or over eating.