Due to excessive use of voice, standing for a long time to teach, correcting homework, teachers often suffer from laryngitis, cervical spondylosis, varicose veins and other “occupational diseases”. Laryngitis: The most common occupational disease of teachers is laryngitis. Causes can be acute laryngitis recurrence, without proper treatment; long-term improper pronunciation or excessive use of voice; often suffer from harmful gases, dust stimulation. The manifestations are hoarseness, increased laryngeal secretion, etc.. Prevention of laryngitis, to develop good living habits, regular living, avoid staying up late; keep your mouth clean at all times, usually drink more water, pay attention to warmth; quit smoking, quit drinking, do not eat stimulating food, eat less fried, pickled food, eat more fresh fruits and vegetables; do not stay in the air-conditioning open room for a long time, the bedroom should be kept ventilated. Cervical spondylosis: Previously, it was thought that middle-aged and elderly people over 45 years old were prone to cervical spondylosis, and modern medical textbooks also believe that cervical spondylosis is a physiological degenerative pathological change in middle-aged and elderly people due to long-term neck strain, as well as with the growth of age. Therefore, we all think that cervical spondylosis is the patent of middle-aged and old people, and has nothing to do with the general youth and students. However, the grim facts show that cervical spondylosis has shown a trend of increasing youthfulness in recent years. According to reports, the youngest patient with cervical spondylosis who went to the hospital was only 2 years old, and there are more and more middle school students suffering from cervical spondylosis. I hospital outpatient cervical spondylosis patients abound, including many young people aged 17 or 18 years old. What people are prone to cervical spondylosis? Medical experts believe that the cervical spondylosis is showing a younger and younger trend of incidence, and people’s movement to reduce the incorrect posture has a close relationship. Engaged in writing, computer staff and athletes are most likely to suffer from cervical and lumbar spondylosis. The onset of cervical spondylosis, young people are mainly due to external causes, that is, postural fatigue and injury caused by postural fatigue. Prolonged work in the same position, neck and shoulder muscles have been in a state of tension and straightness, poor blood circulation, is very likely to lead to the occurrence of cervical spondylosis. Secondary school students’ school bags are getting heavier and heavier, resulting in walking posture is not suitable for the body’s normal physiological curvature, easy to suffer from cervical spondylosis over time. White-collar workers who like to play computers and game consoles will suffer from cervical spondylosis due to poor blood circulation in the neck as a result of keeping the neck in a posture for a long time. Softer mattresses do not adapt to normal physiological bending, is also a reason that can not be ignored. For middle-aged and elderly people, cervical spondylosis is the result and manifestation of physiological degeneration of the body. The anterior and posterior edges of the vertebrae and the small joints become osteophytic, and the joint capsules and ligaments around them correspondingly undergo a series of changes such as congestion, swelling, fibrosis and calcification. How to resist cervical spondylosis? Don’t “bend” your neck and waist. In reading and writing, to maintain a natural sitting position, head slightly forward, while paying attention to adjust the height ratio between the table and chair. Computer chair is best to have a head position, the use of computers can be head on the chair. Voltaic time should not be too long, in general, voltaic half an hour to lift the head or get up and move around. Advocate lying hard board bed, palm mattress, sleep low pillow, abandon the concept of “high pillow without worry”. Do more neck extension exercise, cervical spine exercise can prevent cervical spondylosis can also treat cervical spondylosis, and the exercise method is simple, or sitting or standing can be carried out. The simplest way is to head and neck as a pen to write “m” word, a ten, several times a day. Outdoor exercise such as swimming, badminton, etc. is also a better way. Diet should also pay attention to eat more calcium-rich milk, soy products and fish. Teachers often sit for two to three hours, and physical activity and less, it is easy to lead to the occurrence of cervical spondylosis. In addition, the computer has become a necessary tool for teachers, long-term face computer, in order to make the eyes comfortable, head and neck will be backward, so that the cervical vertebrae straighten, thus causing cervical spondylosis. In order to prevent the occurrence of cervical spondylosis, experts suggest that teachers should change their posture after sitting continuously for two hours. Stand up and turn your head, kick your legs, etc., to relieve the pressure on the neck. Can do “cervical spine drill”, however, I found that the vast majority of people just draw gourd, very few people know the main points of the action, so its effect is certainly not good. In fact, do “cervical manipulation” is a lot of points: 1, action amplitude should be large, and the larger the better. 2, the frequency should be slow, slow movement. 2, the frequency should be slow, slow action is not easy to cause injury. 3, natural breathing. 4, acute attack of cervical spondylosis, trauma and other uncomfortable situation, should not do “cervical spine exercise”. In addition, more physical activities to restore body coordination and flexibility. Teachers can also do radio gymnastics with students to move the whole body. Varicose veins: Teachers have to stand for a long time because of their work. Poor blood circulation in the lower limbs often leads to varicose veins. Experts remind that we should pay attention to the following points: avoid standing or sitting for a long time, and often let the feet do elevation and lowering exercises; wear elastic stockings to exercise the legs for one hour every day, such as walking, brisk walking, cycling, running, etc.; lie down several times a day to elevate your legs above your heart and keep your knees bent to promote the circulation of blood in your legs; maintain a normal body weight; keep your legs and feet clean and avoid injuries; check your legs for swelling every night and put your legs in a bowl before going to bed. Check your calves every night to see if they are swollen. Elevate your legs about 15 centimeters before going to bed and keep your legs in the most comfortable position, and do not let your legs become stiff. For more serious varicose veins, it is best to go to the hospital and have a specialist operate on them.