Hypnosis is a relaxed, focused state of mind where a person becomes highly responsive to suggestions. During hypnosis, someone (called a hypnotist) guides another person into this calm, concentrated state using soothing words and instructions. The hypnotized person stays awake and aware but feels deeply relaxed, similar to that drowsy moment right before falling asleep when your mind drifts easily from thought to thought.

People under hypnosis don't lose control or do things against their will, despite what you might see in cartoons or movies. They simply become more open to helpful suggestions. Doctors and therapists sometimes use hypnosis to help patients manage pain, break habits like nail-biting, or overcome fears. A hypnotist might suggest to someone afraid of dogs that they feel calm and safe around friendly puppies, and this suggestion can help change how the person feels later.

Stage hypnotists use hypnosis for entertainment, having volunteers cluck like chickens or act silly, but this only works because the volunteers agree to play along and want to have fun. Real hypnosis is a genuine psychological state that researchers have studied extensively, showing actual changes in brain activity.