Insomnia, also known as sleep onset disorder and sleep retention disorder, is a relatively common sleep disorder. The prevalence of insomnia in adults depends on different types of insomnia, which can be divided into transient insomnia, short-term insomnia and chronic insomnia according to the duration of insomnia, and the prevalence of different types of insomnia in adults varies. 1. Transient insomnia: It is a common type of insomnia, mainly related to mood and environmental changes. Changes in the sleep environment, dramatic mood swings, or excessive psychological stress, such as recent anxiety and tension, can lead to transient insomnia. The prevalence of transient insomnia is relatively high in adults, reaching 30%-35%. About 1/3 of all adults experience transient insomnia, which usually resolves on its own after a period of time. If it does not, transient insomnia can be improved by adjusting the state and sleep habits and developing a regular sleep schedule. Patients can drink a glass of warm milk before bedtime, avoid getting too excited before bedtime, and sleep at a fixed time. The above measures can usually improve the symptoms of transient insomnia, so transient insomnia usually does not require medication; 2. Short-term insomnia: The prevalence of short-term insomnia can reach 15%-20% in adults. Patients with transient insomnia have insomnia for less than 3 months, mostly caused by sudden events, such as major physical illnesses, such as hypertension and endocrine disorders, as well as the presence of work and interpersonal problems. Short-term insomnia has a clear correlation with mental stress and is generally more difficult to resolve on its own. Patients with short-term insomnia may need short-term use of sleeping pills to help them sleep, such as melatonin, estradiol, etc. At the same time, patients can also soak their feet before bedtime, regulate their mental state, and reduce nap time; 3. Chronic insomnia: The prevalence of chronic insomnia can reach about 10% in adults. Chronic insomnia refers to patients with insomnia whose symptoms last for more than 3 months and occur at least 3 times/week, and can manifest as Difficulty in falling asleep, early awakening, easy waking, and fatigue, as well as memory loss and even functional abnormalities can occur. Chronic insomnia can be improved by applying, in addition to sleeping pills, anti-anxiety medications under medical supervision, including selective 5-hydroxytryptamine reuptake inhibitors such as paroxetine and sertraline, and noradrenaline reuptake inhibitors such as tomoxetine. Insomnia has a high prevalence in adults. Patients with insomnia should avoid coffee, alcohol, strong tea and other beverages in their daily life to avoid disrupting sleep, and also go to bed and get up on time to ensure 6-8 hours of sleep/day. In addition, it is recommended that insomnia patients avoid sleeping during the day, and if they need to take a lunch break, try to control it within half an hour, and also get up at the prescribed time the next day. You can do regular physical exercise every day, such as running, swimming, etc. Usually, avoid excessive stress, avoid anxiety, tension, depression and other emotions persist, and relax properly. If the symptoms of insomnia still cannot be improved, take appropriate drugs to improve sleep under the guidance of a doctor.