Definition 1, the normal psychological response to insomnia: insomnia is a common pathological, physiological phenomenon, people in different occasions (such as the eve of the competition or the eve of the examination) can have different degrees of insomnia and try to reduce or avoid insomnia, which is a normal psychological response, because this insomnia and the reality of the environment, and does not affect the function, insomniacs aware of this a reasonable physiological, psychological response, so do not feel very painful . 2, insomnia: is insomnia disease state. When the severity or duration of insomnia is too long or disproportionate to the objective event or situation, and impairs somatic, psychological and social functions, it is insomnia. Insomnia is considered when the symptoms meet the symptom criteria of the diagnostic criteria for insomnia disorders, the severity of the condition meets the severity criteria of the diagnostic criteria, and the length and frequency of the illness meets the duration criteria of the diagnostic criteria. Insomnia secondary to a primary illness such as a physical disease or other mental disorder is called secondary insomnia. For example, insomnia due to hypertension (also known as insomnia secondary to hypertension) and insomnia due to depressive episodes (also known as insomnia secondary to depressive episodes). For example, the anxiety and insomnia that are clinically manifested during depressive episodes can be secondary to hypertension; however, they can also cause hypertension due to long-term anxiety and insomnia, or even cause primary hypertension (therefore, primary hypertension is considered a psychosomatic disease) or aggravate the original hypertension. For these above-mentioned insomnia manifestations, this