According to the results of the 2002 Global Sleep Survey, the incidence of insomnia in China was as high as 45.4%, and only 25.9% of people were aware of their insomnia. According to the length of insomnia, insomnia can be divided into three types: 1. Transient insomnia, that is, less than one week of insomnia. 2. Short-term insomnia, that is, insomnia between one week and one month. 3. Chronic insomnia, that is, insomnia for more than one month. Chronic insomnia is also called long-term insomnia. The typical symptoms of a patient are that it is difficult to fall asleep, it is difficult to wake up, it is difficult to wake up after awakening, it is difficult to fall asleep again after waking up, and during the day, the spirit is lack of energy, dizziness, headache and forgetfulness. When these symptoms last for more than one month, it is certain that Suffered from chronic insomnia. Some patients with chronic insomnia are caused by transient insomnia. Others are caused by somatic anxiety, such as anxiety, anxiety, excessive alertness, and repeated consideration. Chronic insomnia is the enemy of health. High quality sleep is essential to our physical and mental health. Chronic insomnia sufferers often have reduced work ability and work efficiency, and their quality of life decreases. At the same time, the more sleepless the patient is, the more difficult it is to fall asleep, and the more he or she becomes concerned about insomnia and anxiety, thus aggravating his symptoms and creating a vicious cycle. N95 Respirator, Medical Mask, CE Kn95 Mask, Kn95 Mask Export GUANGZHOU HTD INTERNATIONAL , https://www.maskhtd.com