When a wish, an idea, an emotion, a judgment or an attitude appears and works in a person's mind, if no opposite ideas, opposite motivations and opposite evaluations are encountered, , it’s called a hint. Suggestivity is one of the basic characteristics of human psychological activities, that is, certain stimuli can be accepted consciously or unconsciously. The only difference between people is their susceptibility to suggestions on certain things, and their level of suggestibility. The level of suggestibility is related to the individual's age, gender, personality, psychological activity process, etc. In the same environment, women are more likely to suggest than men, children are more likely to be suggestible than adults, and people with high IQs are more likely to be suggestible than those with low IQs. For the same person, it is easier to suggest when they are in certain states of stress, fatigue, hypnosis, etc.

Suggestions can affect people's concepts, emotions, will, behavior and other psychological activities. If applied properly, it can tap into people's psychological potential. For example, hypnotherapy can tap into psychological potential and coordinate body functions by changing the excitability of the cerebral cortex. Therefore, it is widely used in politics, religion, business, education and other fields, but it is more commonly used to treat diseases. But suggestion is not omnipotent. It is mainly applicable to psychosomatic diseases and neurosis. It should not be used for severe mental illness and organic diseases to avoid delaying treatment.

It implies that treatment is always attached to a certain culture. With the progress of society, backward culture is constantly being eliminated by history, and new culture has become its attachment object. Nowadays, superstitious magic and animal magnetism theories can hardly help patients, but the use of qigong and health care products to treat diseases has been accepted by more and more people. Qigong is my country’s traditional culture and has many believers. Qigong is an individual behavior. Most people can enter the state of Qigong in a hazy state by taking slow and balanced breathing in a quiet situation and adding self-suggestion. The essence of Qigong's "healing" is the psychological suggestion generated by the Qigong master through the psychological atmosphere created by Qigong culture.

In addition to their own pharmacological or physical effects, the promotion of health care products mostly incorporates psychological cues. This suggestion is mainly implemented with the help of advertising. Introduce product efficacy and principles through advertisements, and invite expert recommendations and celebrity testimonies to create a suggestible psychological atmosphere, so that users can easily accept advertising suggestions when using them.

It is worth noting that hints can cure or cause disease. For people with high suggestibility, bad suggestions can easily lead to mental illness. Wrong Qigong practice methods can lead to negative effects such as obsession. Fire breaks out refers to having strong distracting thoughts (such as great joy, great sadness, great desires and great regrets) during practice, coupled with rapid breathing, causing guidance disorder and resulting in psychological barriers and the inability to control one's behavior. Being possessed by a demon means that under a strong suggestion during practice, you will have hallucinations (such as seeing hell and heaven in the so-called "opening of the Third Eye", seeing a body in your belly, etc.), believing it to be true, being unable to extricate yourself, and developing psychological disorders. Severe obsessions resemble symptoms of schizophrenia.

Medical staff’s improper words and deeds causing illness also fall into this category. In the process of diagnosis and treatment of diseases, patients often have fears about certain examination methods and operations. In addition, incorrect discussions and speculations between patients and their families, inappropriate language by medical staff, and the death of critically ill patients, etc. will all cause problems. It causes patients to have various negative psychological reactions, causing iatrogenic psychological disorders, also known as "medical psychological reaction syndrome", which manifests as iatrogenic mental trauma. For example, when a doctor in a hospital was reprimanding a patient, a heart patient who was watching was so emotionally affected that he developed acute heart failure.