Dry eye, edited by Lin Xinjie, is a common civilized disease of modern people. But besides dry eye, do you know that dry mouth can also cause bad breath, tooth decay and other health problems? Yoichi Nakagawa, a lecturer in the Department of Dentistry at Dunmai University in Japan, pointed out that about 500 people seek treatment for "dry mouth" every year. Most patients are between 50 and 70 years old, and about 80% of them are women. Saliva has antibacterial, oral cleaning, neutralizing oral acidity, moistening oral cavity, and repairing tooth surface. The daily saliva secretion of adults is about 1.5 liters. If the secretion is insufficient or excessive, symptoms of dry mouth will appear. Besides aging, the factors leading to the decrease of saliva secretion also include autonomic nerve disorder caused by stress and depression. Dry mouth is also one of the symptoms of diabetes and Sjogren's syndrome. A sick nose makes people accustomed to breathing with their mouth open, which will make saliva evaporate too quickly, which is also the cause of dry mouth. Decreased saliva will not only lead to difficulties in speaking and eating, but also be related to many health problems. Dr. Yoichi Nakagawa pointed out that about 10% of xerostomia patients are infected with oral Candida, which can also lead to bacterial growth, bad breath and tooth decay. Dry mouth! The more things you encounter, the more likely it is dry mouth-often dry mouth-the food tastes strange-the mouth is sticky-the eyes and skin are easy to dry-you will wake up in the middle of the night because of thirst-it is difficult to eat dry food such as bread-the mouth is rough-the mouth is easy to get hurt, and the tongue or oral mucosa will hurt. Japanese doctors' guidelines for dry mouth treatment say that when dry mouth symptoms appear, Dr. Yoichi Nakagawa should find out the reason. If dry mouth is caused by physical diseases such as diabetes, priority should be given to treating physical diseases; If it is caused by mental stress, you should relax your mood and adjust your autonomic nerves. In addition, people who feel thirsty for a long time should start to improve their living habits, and then match health products to solve the problem of dry mouth. 1 Exercise masticatory muscles and salivate-eat chewy food, such as chewing gum and candy, and chew slowly at ordinary times to develop chewing habits. -talk to people and exercise facial muscles. -People who have difficulty chewing because of bad teeth or improper dentures should install correct dentures. Keep your mouth moist-breathe through your nose to avoid saliva evaporation. -Maintain proper indoor humidity. -Always replenish water. The distribution area of salivary gland includes: subauricular gland under the ear root, submandibular gland behind the jaw and sublingual gland under the tongue. In addition, there are salivary glands on the inside of lips and cheeks. * * *, can be used with moisturizing gel, and can promote saliva secretion when applied to cheeks and tongue. *** 1: Hold the left cheek with the left hand, and exert force from the mouth with the fingers of the right hand, * * * The mucous membrane on the inside of the cheek. The other side works in the same way. *** 2: Gently touch the tongue surface and sublingual mucosa, and the sublingual gland secretes saliva. Source: "The most important point! The most economical! Encyclopedia of Eye and Tooth Care/Nikkei Leisure Editorial Department /how?