In fact, in real life, many “low head” when looking at the phone, the head down angle mostly more than 45 degrees, or even up to 60 degrees. With a head weight of 8 kilograms to calculate, when the head is low to 60 degrees, the cervical spine to bear the weight of more than thirty kilograms, which is equivalent to the cervical spine hanging two super watermelon. “It is no exaggeration to say that the weight of an adult’s head is almost as heavy as a large watermelon of more than ten pounds, and if the angle of the head down is taken into account, the cervical spine of the ‘lowers’ may indeed bear such a heavy weight.” The cervical spine is like the mast of a sailboat, the muscles that control the movement of the cervical spine are like the ropes that hold the mast, if the rear ropes are out of order, the mast will naturally not be stable. Under normal circumstances, the muscles controlling the four directions of the cervical spine are in dynamic balance, but when the head is repeatedly lowered for a long time so that the center of gravity is shifted forward, the posterior cervical muscles are overloaded by the need to pull the head forward. The muscle equilibrium is broken by chronic strain, and over time the cervical spine curvature changes will produce cervical spondylosis. Some people look down at the cell phone for a long time vision blurred, thought it was the light or look at the screen for too long and other reasons, but did not know that the problem lies in the cervical spine. 1, the relationship between cervical spondylosis and hypertension, coronary heart disease, cerebral ischemia: In recent years, scholars at home and abroad have recognized that one of the common sources of abnormal blood pressure, coronary heart disease, arrhythmia, cerebral ischemic disease in middle and old age is cervical spondylosis. 2, cervical spondylosis and neurological diseases such as neurasthenia, motor neuron disease, cerebellar atrophy, cremasteric cavitation and other neurological diseases are related: more than 80% of neurasthenia suffer from cervical spondylosis, and more than 90% of cervical spondylosis patients have various symptoms of neurasthenia, of which the vertebral artery type accounts for 100%, therefore, prevention of cervical spondylosis can prevent neurasthenia. 3, the relationship between digestive system diseases and cervical (thoracic, lumbar) spondylosis: cervicothoracic spondylosis is closely related to gastroptosis, ulcer disease, gastrointestinal dysfunction, stomach cramps, cholecystitis, gallstone disease, while the lower thoracic and lumbosacral spondylosis is particularly closely related to functional colon diseases and pelvic diseases. (1) Frequent dizziness: This condition often occurs when the neck is active, especially when the head is suddenly turned and dizziness is felt for a few seconds in mild cases, but can last for days or longer in severe cases. (2) Numbness and weakness of the fingers and soreness of the shoulders: The most common symptom in the daily life of people at risk of cervical spondylosis is caused by long-term head down, strain on the posterior neck muscles, ligaments and other tissues, and excessive fatigue of the neck and shoulder muscles, which in the long run causes degenerative changes in the neck and stimulates the nerve roots. (3) repeated “pillow”: due to soft tissue strain in the neck, lost the function of maintaining the stability of the cervical joints, clinically called “cervical instability”, there is a tendency to rest to reduce the natural relief and exertion aggravated by cold recurrent attacks. Repeated pillow fall” is a signal of cervical spondylosis. (4) Frequent migraine, nausea, tinnitus, chest tightness: Due to a prolonged posture, causing lasting spasmodic contraction of the neck muscles, and the blood circulation of the muscles is impaired, which will cause neck degeneration and ligament calcification over time, resulting in symptoms caused by insufficient intracranial blood supply or sympathetic nerve dysfunction. Neck pillow method: take the supine position, the bath towel folded and rolled into a cylindrical pad under the neck, pay attention to adjust the height of the pillow pad, on the one hand, the cervical vertebrae curvature pad out, that is, under the neck with a sense of support; on the other hand, the head of the back of the pillow and can not leave the bed. Once a day, each time the pad time to 30 minutes to 1 hour is appropriate, do not be too long. This method helps to restore the physiological curvature of the cervical spine. The neck is also coated with emollient lotion: We usually take care of the face more, and the neck less, plus often low, the neck is easier to show the old state. Usually should pay attention not to old head down, can often change the posture, in addition, the neck should also pay attention to the same as the face use moisturizer. Correct sitting posture: avoid cervical spine for a long time to maintain in a fixed position, generally about 1 hour should do some simple neck activities. Also avoid half lying and half sitting posture. Cervical spine insulation: avoid cold neck including sweating, rain, direct wind and cold, etc. Put down the phone and lift your head: Give more of a smile to your surroundings and have more conversations with your companions around you. The most important people are the ones who are with you.