Hypnosis is an altered state of consciousness, usually achieved with the help of a hypnotherapist. When you're under hypnosis, your attention is highly focused and you're more responsive to suggestions, including behavior changes that can help you lose weight. Over the years, numerous studies have evaluated weight-loss hypnosis. Most found positive, but modest, results. The methodology of some studies has been questioned, so it's difficult to determine the exact usefulness of hypnosis.

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