Abstract
One third of a person's life is in a state of sleep, and good sleep quality is one of the indicators of health. Long-term insomnia has a great impact on patients' quality of life, physical and mental state. Especially in the elderly, long-term insomnia will induce a variety of chronic diseases, seriously affecting the quality of life. Because of the characteristics of the physiological structure of the elderly, insomnia in the elderly has its unique characteristics different from that of the young. This article reviews the characteristics of chronic insomnia in the elderly in terms of symptom, pathogenesis and treatment. By elaborating the characteristics of senile chronic insomnia, we hope to provide ideas for clinical treatment of senile chronic insomnia.