Many people like to bend their necks when talking on the phone and hold the microphone between their necks, shoulders and chins, while their hands are busy with other tasks, such as writing and housework. Although this makes full use of time, it is possible to suffer from cervical spondylosis in the long run. In modern work, many people often operate computers, read or write, and these jobs often require low head and neck flexion. Keeping this posture for a long time, the cervical spine is bound to produce fatigue, and over time will occur after the cervical ligament, muscle chronic strain, resulting in vertebral hyperplasia, ligament hypertrophy, the development to a certain extent can cause cervical spondylosis, which has a greater impact on human health. You can take the opportunity to relax your cervical spine, but if you use your neck to hold the receiver at this moment, for a few minutes or even ten minutes, this is already fatigue of the cervical spine, it is like adding insult to injury, and it is easy to cause strain injury. From the physiological structure of the human cervical spine lateral bending angle is not too large, to hold the handset, for the cervical spine is a very difficult action, need to make a great response to complete. The muscles on one side of the cervical spine are passively pulled, while the muscles on the other side have to be extremely contracted, as do the fascia and ligaments, while almost all the small joints of the cervical spine are at their maximum range of motion. If you maintain a posture that makes the cervical spine very strenuous for a long time, without paying attention to maintaining the balance between muscles and soft tissues, it is easy to induce cervical spondylosis. The correct posture for making a phone call The cervical spine is neutral, so that it is in the most relaxed state, and the handset is held close to the ear and mouth. To avoid contamination from direct contact with the microphone, do not hold it close to your ears and mouth.