March 21 is “World Sleep Day”, the theme of which is “Healthy Mind, Good Sleep”. According to the survey, 38.2% of the residents are experiencing insomnia, and together with other sleep disorders, 40% of Chinese people have poor sleep quality. Therefore, sleep disorders have a widespread impact on our nationals, and we should pay attention to sleep from the concept, ensure normal sleep, understand the harm of sleep disorders, and patients with sleep disorders should go to the hospital early. What is normal sleep? Normal sleep lasts an average of 6-9 hours per night, and these 6-9 hours are divided into 4-6 sleep cycles of an average of 90 minutes each. At any point in the course of the sleep cycle that wakes the sleeper up and resumes sleep, he does not return to the time of sleep that woke him up, but starts from the initial time. Therefore, quality sleep is not only of sufficient duration, but also of high quality. Dangers of sleep disorders Can lead to somatic sensory discomfort. Poor energy during the day, poor concentration, dizziness and headache, bad mood, poor appetite, memory loss, etc.; can lead to somatic diseases. Such as falls, coronary heart disease, hypertension, cardiovascular disease, asthma, peptic ulcer, dementia, etc.; can lead to psychological diseases and even serious mental illness. Such as depression, anxiety disorder, neurosis, bipolar disorder, schizophrenia, etc.; aggravate the original disease. Such as brain tumor, post-stroke syndrome, restlessness syndrome, etc. How to improve the quality of sleep? Sleep regularly, go to bed and get up at a fixed time every day, and do not sleep during the day. The darker the bedroom, the better, the temperature is appropriate, do not sleep while watching TV, and do not put an alarm clock at the head of the bed. Do not do strenuous exercise before going to bed, do not do stimulating activities that can cause excitement before going to bed, do not watch stressful movies and TV shows and novels. Dinner should not be too full, and do not eat indigestible food 2 hours before bedtime. Sleeping pills can cause an increase in compensatory allogeneic sleep, resulting in frequent nightmares, so do not take sedative-hypnotics at will. If the quality of sleep is poor, more than 3 days a week for 4 consecutive weeks, you should go to a regular hospital for consultation.