Hypnosis could indeed change a person's thoughts and memories. Hypnosis is a type of psychotherapy that affects a person's thoughts and emotions by inducing a relaxed state, thereby changing their memory and cognitive processes. During hypnosis, the hypnotist will give people a hint or lead them to think that they are undergoing a specific treatment to relax their body and mind and accept the suggestion. This kind of suggestion can help people change their thinking and behavior patterns, including memories. However, it was important to note that hypnosis was not a panacea. Although it could change people's thoughts and memories under certain circumstances, not everyone could be hypnotized, and hypnosis could not solve all psychological problems. Therefore, when using hypnosis, professional hypnotists were needed to carry out treatment and follow strict operating procedures.